出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/10/15 15:12:43」(JST)
パープル (Purple) は紫を意味する英単語。
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| Purple | |
|---|---|
| Color coordinates | |
| Hex triplet | #800080 |
| sRGBB (r, g, b) | (128, 0, 128) |
| CMYKH (c, m, y, k) | (0, 100, 0, 50) |
| HSV (h, s, v) | (300°, 100%, 50%) |
| Source | HTML |
| B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred) |
|
Purple is defined as a deep, rich shade between crimson and violet,[1] or, more broadly, as a range of hues of color between blue and red,[2] or as a dark color that is a blend of red and blue. [3] According to surveys In Europe and the U.S., purple is the color most often associated with royalty, magic, mystery and piety.[4] When combined with pink, it is associated with eroticism and seduction.[5]
Purple was the color worn by Roman magistrates; it became the imperial color worn by the rulers of the Byzantine Empire and the Holy Roman Empire, and later by Roman Catholic bishops. Similarly in Japan, the color is traditionally associated with the Emperor and aristocracy.[6]
Purple and violet are similar, though purple is closer to red. In optics, there is an important difference; purple is a composite color made by combining red and blue, while violet is a spectral color, with its own wavelength on the visible spectrum of light.
The word 'purple' comes from the Old English word purpul which derives from the Latin purpura, in turn from the Greek πορφύρα (porphura),[7] name of the Tyrian purple dye manufactured in classical antiquity from a mucus secreted by the spiny dye-murex snail.[8][9]
The first recorded use of the word 'purple' in the English language was in the year 975 AD.[10] In heraldry, the word purpure is used for purple.[11]
Purple is the color of royalty. A ticket for the coronation of Elizabeth II (1953)
In Catholicism purple is a liturgical color representing piety
Purple has become a popular color for neckties; it is less aggressive than red, but more active than blue.[12]
The Purple Heart is awarded to U.S. soldiers who are wounded in action
Amethyst gemstones
A purple beech, also known as copper beech (Fagus sylvatica)
Eggplants
Plums (Prunus domestica)
Fuchsia in the RGB color model is purple at maximum brightness. The color is named for the flower, which is named for German scientist Leonhart Fuchs (1501–1566)
The color magenta is very similar to fuchsia. In color printing, it is a primary color, along with cyan and yellow. It takes its name from a battle in 1859 at the city of Magenta, Italy
Purple eye shadow is intended to create the illusion of depth and to attract attention to the eyes
| Violet | |
|---|---|
| Color coordinates | |
| Hex triplet | #8F00FF |
| sRGBB (r, g, b) | (143, 0, 255) |
| CMYKH (c, m, y, k) | (44, 100, 0, 0) |
| HSV (h, s, v) | (274°, 100%, 100[13]%) |
| Source | HTML Color Chart @274 |
| B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred) |
|
In the traditional color wheel used by painters, violet and purple are both placed between red and blue. Purple occupies the space closer to red, between crimson and violet.[1] Violet is closer to blue, and is usually less intense[clarification needed] and bright[clarification needed] than purple.[citation needed]
While the two colors look similar, from the point of view of optics there are important differences. Violet is a spectral color – it occupies its own place at the end of the spectrum of light first identified by Newton in 1672, and it has its own wavelength (approximately 380–420 nm) – whereas purple is a combination of two spectral colors, red and blue. There is no such thing as the "wavelength of purple light"; it only exists as a combination.[14][15] See purple boundary.
Monochromatic violet light cannot be produced by the red-green-blue (RGB) color system, the method used to create colors on a television screen or computer display (a fact that is, indeed, true of any monochromatic color of the spectrum besides the shades of red, green, and blue chosen for the primaries).[clarification needed] However, the system is capable of approximating it due to the fact that the L-cone (red cone) in the eye is uniquely sensitive to two different discontinuous regions in the visible spectrum – its primary region being the long wavelength light of the yellow-red region of the spectrum, and a secondary smaller region overlapping with the S-cone (blue cone) in the shortest wavelength, violet part.[16] This means that when violet light strikes the eye, the S-cone should be stimulated strongly, and the L-cone stimulated weakly along with it. By lighting the red primary of the display weakly along with the blue primary, a relatively similar pattern of sensitization can be achieved, creating an illusion, the sensation of extremely short wavelength light using what is in fact mixed light of two longer wavelengths. The resulting color has the same hue as pure violet; however, it has a lower saturation.
One curious psychophysical difference between purple and violet is their appearance with an increase in luminance (apparent brightness). Violet, as it brightens, looks more and more blue. The same effect does not happen with purple. This is the result of what is known as the Bezold–Brücke shift.
While the scientific definitions of violet and purple are clear, the cultural definitions are more varied. The color known in antiquity as Tyrian purple ranged from crimson to a deep bluish-purple, depending upon how it was made. In France, purple is defined as "a dark red, inclined toward violet."[17] The color called purple by the French, pourpre, contains more red and half the amount of blue of the color called purple in the United States and the U.K. In German, this color is sometimes called Purpurrot ("purple-red") to avoid confusion.[18]
The color violet
The color purple
In the traditional Boutet color circle (1708), purple is shown between crimson and violet.
The French call the color on this shield "pourpre" (purple). French and German purple contains more red and less blue than American or British purple.
Purple was one of the first colors used in prehistoric art. The artists of Pech Merle cave and other Neolithic sites in France used sticks of manganese and hematite powder to draw and paint animals and the outlines of their own hands on the walls of their caves. These works have been dated to between 16,000 and 25,000 BC.[19]
As early as the 15th century BC the citizens of Sidon and Tyre, two cities on the coast of Ancient Phoenicia, (present day Lebanon), were producing purple dye from a sea snail called the spiny dye-murex.[20] Clothing colored with the Tyrian dye was mentioned in both the Iliad of Homer and the Aeneid of Virgil.[20] The deep, rich purple dye made from this snail became known as Tyrian purple.[21]
The process of making the dye was long, difficult and expensive. Thousands of the tiny snails had to be found, their shells cracked, the snail removed. Mountains of empty shells have been found at the ancient sites of Sidon and Tyre. The snails were left to soak, then a tiny gland was removed and the juice extracted and put in a basin, which was placed in the sunlight. There a remarkable transformation took place. In the sunlight the juice turned white, then yellow-green, then green, then violet, then a red which turned darker and darker. The process had to be stopped at exactly the right time to obtain the desired color, which could range from a bright crimson to a dark purple, the color of dried blood. Then either wool, linen or silk would be dyed. The exact hue varied between crimson and violet, but it was always rich, bright and lasting.[22]
Tyrian purple became the color of kings, nobles, priests and magistrates all around the Mediterranean. It was mentioned in the Old Testament; In the Book of Exodus, God instructs Moses to have the Israelites bring him an offering including cloth "of blue, and purple, and scarlet.",[23] to be used in the curtains of the Tabernacle and the garments of priests. The term used for purple in the 4th-century Latin Vulgate version of the Bible passage is purpura or Tyrian purple.[24] In the Iliad of Homer, the belt of Ajax is purple, and the tails of the horses of Trojan warriors are dipped in purple. In the Odyssey, the blankets on the wedding bed of Odysseus are purple. In the poems of Sappho (6th century BC) she celebrates the skill of the dyers of the Greek kingdom of Lydia who made purple footwear, and in the play of Aeschylus (525–456 BC), Queen Clytemnestra welcomes back her husband Agamemnon by decorating the palace with purple carpets. In 950 BC, King Solomon was reported to have brought artisans from Tyre to provide purple fabrics to decorate the Temple of Jerusalem.[25]
Alexander the Great (when giving imperial audiences as the basileus of the Macedonian Empire), the basileus of the Seleucid Empire, and the kings of Ptolemaic Egypt all wore Tyrian purple.
The Roman custom of wearing purple togas may have come from the Etruscans; an Etruscan tomb painting from the 4th century BC shows a nobleman wearing a deep purple and embroidered toga.
In Ancient Rome, the Toga praetexta was an ordinary white toga with a broad purple stripe on its border. It was worn by freeborn Roman boys who had not yet come of age,[26] curule magistrates,[27][28] certain categories of priests,[29] and a few other categories of citizens.
The Toga picta was solid purple, embroidered with gold. During the Roman Republic, it was worn by generals in their triumphs, and by the Praetor Urbanus when he rode in the chariot of the gods into the circus at the Ludi Apollinares.[30] During the Empire, the toga picta was worn by magistrates giving public gladiatorial games, and by the consuls, as well as by the emperor on special occasions.
During the Roman Republic, when a triumph was held, the general being honored wore an entirely purple toga bordered in gold, and Roman Senators wore a toga with a purple stripe. However, during the Roman Empire, purple was more and more associated exclusively with the emperors and their officers.[31] The Emperor Caligula had the King of Mauritania murdered for wearing a purple mantle better than his own. Nero made it punishable by death for anyone else to wear the color.
Jesus, in the hours leading up to his crucifixion, was dressed in purple (πορφυραν: porphurov) by the Roman garrison to mock his claim to be 'King of the Jews'.[32]
The actual color of Tyrian purple seems to have varied from a reddish to a bluish purple. According to the Roman writer Vitruvius, (1st century BC), the murex coming from northern waters, probably murex brandaris, produced a more bluish color than those of the south, probably murex trunculus. The most valued shades were said to be those closer to the color of dried blood, as seen in the mosaics of the robes of the Emperor Justinian in Ravenna. The chemical composition of the dye from the murex is close to that of the dye from indigo, and indigo was sometimes used to make a counterfeit Tyrian purple, a crime which was severely punished. What seems to have mattered about Tyrian purple was not its color, but its luster, richness, its resistance to weather and light, and its high price.[33]
In modern times, Tyrian purple has been recreated, at great expense. When the German chemist Paul Friedander tried to recreate Tyrian purple in 2008, he needed twelve thousand mollusks to create 1.4 ounces of dye, enough to color a handkerchief. In the year 2000 a gram of Tyrian purple made from ten thousand mollusks according to the original formula, cost two thousand euro.[34][35]
An Egyptian bowl colored with Egyptian blue, with motifs painted in dark manganese purple. (between 1550 and 1450 BC)
Painting of a man wearing an all-purple toga picta, from an Etruscan tomb (about 350 BC).
Roman men wearing togae praetextae with reddish-purple stripes during a religious procession (1st century BC).
Tyrian purple was made from a sea snail called murex
Dye bath of Tyrian purple
Cloth dyed with Tyrian purple. The color could vary from crimson to deep purple, depending upon the type of murex sea-snail and how it was made.
Through the early Christian era, the rulers of the Byzantine Empire continued the use of purple as the imperial color, for diplomatic gifts, and even for imperial documents and the pages of the Bible. Gospel manuscripts were written in gold lettering on parchment that was colored Tyrian purple.[36] Empresses gave birth in the Purple Chamber, and the emperors born there were known as "born to the purple," to separate them from emperors who won or seized the title through political intrigue or military force. Bishops of the Byzantine church wore white robes with stripes of purple, while government officials wore squares of purple fabric to show their rank.
In western Europe, the Emperor Charlemagne was crowned in 800 wearing a mantle of Tyrian purple, and was buried in 814 in a shroud of the same color, which still exists (see below). However, after the fall of Constantinople to the Ottoman Turks in 1453, the color lost its imperial status. The great dye works of Constantinople were destroyed, and gradually scarlet, made with dye from the cochineal insect, became the royal color in Europe.[37]
The Empress Theodora, the wife of the Emperor Justinian, dressed in Tyrian purple. (6th century).
A medieval depiction of the coronation of the Emperor Charlemagne in 800. The bishops and cardinals wear purple, and the Pope wears white.
A fragment of the shroud in which the Emperor Charlemagne was buried in 814. It was made of gold and Tyrian purple from Constantinople.
In 1464, Pope Paul II decreed that cardinals should no longer wear Tyrian purple, and instead wear scarlet, from kermes and alum,[38] since the dye from Byzantium was no longer available. Bishops and archbishops, of a lower status than cardinals, were assigned the color purple, but not the rich Tyrian purple. They wore cloth dyed first with the less expensive indigo blue, then overlaid with red made from kermes dye.[39][40]
While purple was worn less frequently by Medieval and Renaissance kings and princes, it was worn by the professors of many of Europe's new universities. Their robes were modeled after those of the clergy, and they often wore square violet or purple caps and robes, or black robes with purple trim. Purple robes were particularly worn by students of divinity.
Purple and violet also played an important part in the religious paintings of the Renaissance. Angels and the Virgin Mary were often portrayed wearing purple or violet robes.
A 12th-century painting of Saint Peter consecrating Hermagoras, wearing purple, as a bishop.
Madonna and child by Giotto (1266–1320)
In the Ghent Altarpiece (1422) by Jan van Eyck, the popes and bishops are wearing purple robes.
A purple-clad angel from the Resurrection of Christ by Raphael (1483–1520)
In the 18th century, purple was still worn on occasion by Catherine the Great and other rulers, by bishops and, in lighter shades, by members of the aristocracy, but rarely by ordinary people, because of its high cost. But in the 19th century, that changed.
In 1856, an eighteen-year-old British chemistry student named William Henry Perkin was trying to make a synthetic quinine. His experiments produced instead the first synthetic aniline dye, a purple shade called mauveine, shortened simply to mauve. It took its name from the mallow flower, which is the same color. The new color quickly became fashionable, particularly after Queen Victoria wore a silk gown dyed with mauveine to the Royal Exhibition of 1862. Prior to Perkin's discovery, mauve was a color which only the aristocracy and rich could afford to wear. Perkin developed an industrial process, built a factory, and produced the dye by the ton, so almost anyone could wear mauve. It was the first of a series of modern industrial dyes which completely transformed both the chemical industry and fashion.[41]
Purple was popular with the pre-Raphaelite painters in Britain, including Arthur Hughes, who loved bright colors and romantic scenes.
Portrait of Empress Catherine the Great of Russia, by Fyodor Rokotov. (State Hermitage Museum).
In England, pre-Raphaelite painters like Arthur Hughes were particularly enchanted by purple and violet. This is April Love (1856).
Portrait of Félix Pissarro (1881), by Camille Pissarro
Portrait of Caroline Remy de Guebhard, by Pierre-Auguste Renoir (1841–1919).
At the turn of the century, purple was a favorite color of the Austrian painter Gustav Klimt, who flooded his pictures with sensual purples and violets.
In the 20th century, purple retained its historic connection with royalty; George VI (1896–1952), wore purple in his official portrait, and it was prominent in every feature of the coronation of Elizabeth II in 1953, from the invitations to the stage design inside Westminster Abbey. But at the same time, it was becoming associated with social change; with the Women's Suffrage movement for the right to vote for women in the early decades of the century, with Feminism in the 1970s, and with the psychedelic drug culture of the 1960s.
In the early 20th century, purple, green and white were the colors of the Women's Suffrage movement, which fought to win the right to vote for women, finally succeeding with the 19th Amendment to the U.S. Constitution in 1920. Later, in the 1970s, in a tribute to the Suffragettes, it became the color of the women's liberation movement.[42]
In the concentration camps of Nazi Germany, prisoners who were members of non-conformist religious groups, such as the Jehovah's Witnesses, were required to wear a purple triangle.[43]
During the 1960s and early 1970s it was also associated with counterculture, psychedelics and musicians like Jimi Hendrix with his 1967 song "Purple Haze", or the English rock band of Deep Purple which formed in 1968. Later, in the 1980s, it was featured in the song and album Purple Rain (1984) by the American musician Prince.
The Purple Rain Protest was a protest against apartheid that took place in Cape Town, South Africa on 2 September 1989, in which a police water cannon with purple dye sprayed thousands of demonstrators. This led to the slogan The Purple Shall Govern.
The violet or purple necktie became very popular at the end of the first decade of the 21st century, particularly among political and business leaders. It combined the assertiveness and confidence of a red necktie with the sense of peace and cooperation of a blue necktie, and it went well with the blue business suit worn by most national and corporate leaders. [44]
Gustav Klimt portrait of woman with a purple hat (1912).
George VI (1895–1952) wore purple in his official portrait.
The Coronation portrait of Elizabeth II and The Duke of Edinburgh (1953) has three different shades of purple in the train, curtains and crown.
Program from a Women's Suffrage march (1913).
A pennant from the Women's Suffrage movement in the state of Indiana.
Symbol of the Feminist movement in the United States (1970s). The purple color was chosen as a tribute to the Suffragette movement a half-century earlier.
Purple, unlike violet, is not one of the colors of the visible spectrum. It was not one of the colors of the rainbow identified by Isaac Newton, and it does not have its own wavelength of light. For this reason it is called a non-spectral color. It exists in culture and art, but not, in the same way that violet does, in optics. It is simply a combination, in various proportions, of two primary colors, red and blue.
In color theory, a "purple" is defined as any non-spectral color between violet and red (excluding violet and red themselves).[14] The spectral colors violet and indigo are not purples according to color theory but they are purples according to common English usage since they are between red and blue.
In the traditional color wheel long used by painters, purple is usually placed between crimson and violet.[45] In a slightly different variation, on the color wheel, it is placed between magenta and violet. This shade is sometimes called electric purple (See Shades of purple).[46]
In the RGB color model, named for the colors red, green and blue, used to create all the colors on a computer screen or television, the range of purples is created by mixing red and blue light of different intensities on a black screen. The standard HTML color purple is created by red and blue light of equal intensity, at a brightness that is halfway between full power and darkness.
In color printing, purple is sometimes represented by the color magenta, or sometimes by mixing magenta with red or blue. It can also be created by mixing just red and blue alone, but in that case the purple is less bright, with lower saturation or intensity. A less bright purple can also be created with light or paint by adding a certain quantity of the third primary color (green for light or yellow for pigment).
On a chromaticity diagram, the straight line connecting the extreme spectral colors (red and violet) is known as the line of purples (or 'purple boundary'); it represents one limit of human color perception. The color magenta used in the CMYK printing process is near the center of the line of purples, but most people associate the term "purple" with a somewhat bluer tone, such as is displayed by the color "electric purple" (a color also directly on the line of purples), shown below. Some common confusion exists concerning the color names "purple" and "violet". Purple is a mixture of red and blue light, whereas violet is a spectral color.
On the CIE xy chromaticity diagram, violet is on the curved edge in the lower left, while purples are on the straight line connecting the extreme colors red and violet; this line is known as the line of purples, or the purple line.[47][48]
On a computer or television screen, purple colors are created by mixing red and blue light. This is called the RGB color model.
The CIE xy chromaticity diagram
During the Middle Ages, artists usually made purple by combining red and blue pigments; most often blue azurite or lapis-lazuili with red ochre, cinnabar or minium. They also combined lake colors made by mixing dye with powder; using woad or indigo dye for the blue, and dye made from cochineal for the red.[50]
Manganese pigments were used in the neolithic paintings in the Lascaux cave, France.
Hematite was often used as the red-purple color in the cave paintings of Neolithic artists.
A sample of purpurite, or manganese phosphate, from the Packrat Mine in Southern California.
A swatch of cobalt violet, popular among the French impressionists.
Manganese violet is a synthetic pigment invented in the mid-19th century.
Quinacridone violet, a synthetic organic pigment sold under many different names.
The most famous purple dye in the ancient world was Tyrian purple, made from a type of sea snail called the murex, found around the Mediterranean. (See history section above).
In western Polynesia, residents of the islands made a purple dye similar to Tyrian purple from the sea urchin. In Central America, the inhabitants made a dye from a different sea snail, the purpura, found on the coasts of Costa Rica and Nicaragua. The Mayans used this color to dye fabric for religious ceremonies, while the Aztecs used it for paintings of ideograms, where it symbolized royalty.[50]
In the Middle Ages, those who dyed blue fabric and red fabric were members of different guilds, and were forbidden to dye any other colors than those of their own guild.[citation needed] Most purple fabric was made by the dyers who worked with red, and who used dye from madder or cochineal, so Medieval violet colors were inclined toward red.[citation needed]
Orcein, or purple moss, was another common purple dye. It was known to the ancient Greeks and Hebrews, and was made from a Mediterranean lichen called archil or dyer's moss (Roccella tinctoria), combined with an ammoniac, usually urine. Orcein began to achieve popularity again in the 19th century, when violet and purple became the color of demi-mourning, worn after a widow or widower had worn black for a certain time, before he or she returned to wearing ordinary colors.[52]
From the Middle Ages onward, purple and violet dyes for the clothing of common people were often made from the blackberry or other red fruit of the genus rubus, or from the mulberry. All of these dyes were more reddish than bluish, and faded easily with washing and exposure to sunlight.
A popular new dye which arrived in Europe from the New World during the Renaissance was made from the wood of the logwood tree (Haematoxylum campechianum), which grew in Spanish Mexico. Depending on the different minerals added to the dye, it produced a blue, red, black or, with the addition of alum, a purple color, It made a good color, but, like earlier dyes, it did not resist sunlight or washing.
In the 18th century, chemists in England, France and Germany began to create the first synthetic dyes. Two synthetic purple dyes were invented at about the same time. Cudbear is a dye extracted from orchil lichens that can be used to dye wool and silk, without the use of mordant. Cudbear was developed by Dr Cuthbert Gordon of Scotland: production began in 1758, The lichen is first boiled in a solution of ammonium carbonate. The mixture is then cooled and ammonia is added and the mixture is kept damp for 3–4 weeks. Then the lichen is dried and ground to powder. The manufacture details were carefully protected, with a ten-feet high wall being built around the manufacturing facility, and staff consisting of Highlanders sworn to secrecy.
French purple was developed in France at about the same time. The lichen is extracted by urine or ammonia. Then the extract is acidified, the dissolved dye precipitates and is washed. Then it is dissolved in ammonia again, the solution is heated in air until it becomes purple, then it is precipitated with calcium chloride; the resulting dye was more solid and stable than other purples.
Cobalt violet is a synthetic pigment that was invented in the second half of the 19th century, and is made by a similar process as cobalt blue, cerulean blue and cobalt green. It is the violet pigment most commonly used today by artists.
Mauveine, also known as aniline purple and Perkin's mauve, was the first synthetic organic chemical dye,[53][54] discovered serendipitously in 1856. Its chemical name is 3-amino-2,±9-dimethyl-5-phenyl-7-(p-tolylamino)phenazinium acetate.
Fuchsine was another synthetic dye made shortly after mauveine. It produced a brilliant fuchsia color.
In the 1950s, a new family of purple and violet synthetic organic pigments called quinacridone came onto the market. It had originally been discovered in 1896, but were not synthetized until 1936, and not manufactured until the 1950s. The colors in the group range from deep red to bluish purple in color, and have the molecular formula C20H12N2O2. They have strong resistance to sunlight and washing, and are widely used today in oil paints, water colors, and acrylics, as well as in automobile coatings and other industrial coatings.
Blackberries were sometimes used to make purple dye in the Middle Ages.
This lichen, growing on a tree in Scotland, was used in the 18th century to make a common purple dye called Cudbear.
A sample of silk dyed with the original mauveine dye.
A sample of fuchsine dye
The purple frog is a species of amphibian found in India.
Pseudanthias pascalus or purple queenfish.
The purple sea urchin from Mexico.
A purple heron in flight (South Africa).
A purple finch (North America).
The Lorius domicella, or purple-naped lory, from Indonesia.
The imperial amazon parrot is featured on the national flag of Dominica, making it the only national flag in the world with a violet or purple color.
The purple honeycreeper from South America does not appear to be purple at all. How it received its name is a mystery.
Grapes, eggplants, pansies and other fruits, vegetables and flowers are purple because they contain natural pigments called Anthocyanins. These pigments are found in the leaves, roots, stems, vegetables, fruits and flowers of all plants. They aid photosynthesis by blocking harmful wavelengths of light that would damage the leaves. In flowers, the purple Anthocyanins help attract insects who pollinate the flowers. Not all Anthocyanins are purple; they vary in color from red to purple to blue, green or yellow, depending upon the level of their pH.
The purple colors of this cauliflower, grapes, fruits, vegetables and flowers comes from natural pigments called Anthocyanins.
Anthocyanins range in color from red to purple to green, blue and yellow, depending upon the level of their pH.
Anthocyanins also account for the purple color in these copper beech trees, and in purple autumn leaves.
Anthocyanins produce the purple color in blood oranges.
Eggplant is popular in cuisines all around the world. These are Indian eggplants.
An artichoke flower in blossom in Dalat, Vietnam
Iris germanica flowers
Syringa vulgaris, or lilac blossoms
Medicago sativa, known as alfalfa in the U.S. and lucerne in the U.K.
The Aster alpinus, or alpine aster, is native to the European mountains, including the Alps, while a subspecies is found in Canada and the United States.
Lavender flowers.
A purple rose.
Purple Mountain near Killarney, Ireland.
Purple Mountain in Yellowstone National Park.
Purple Mountain in China.
The greater the distance from the eye to mountains, the lighter and more blue they appear. This effect, long recognized by Leonardo da Vinci and other painters, is called aerial perspective or atmospheric perspective. The more distant the mountains are, the less contrast the eye sees between the mountains and the sky.
The bluish color is caused by an optical effect called Rayleigh scattering. The sunlit sky is blue because air scatters short-wavelength light more than longer wavelengths. Since blue light is at the short wavelength end of the visible spectrum, it is more strongly scattered in the atmosphere than long wavelength red light. The result is that the human eye perceives blue when looking toward parts of the sky other than the sun.[58]
At sunrise and sunset, the light is passing through the atmosphere at a lower angle, and traveling a greater distance through a larger volume of air. Much of the green and blue is scattered away, and more red light comes to your eye, creating the colors of the sunrise and sunset and making the mountains look purple.
The more distant mountains are, the lighter and more blue they are. This is called atmospheric perspective or aerial perspective.
Sunset at Auke Bay, Alaska. Thanks to Rayleigh scattering, the mountains appear purple.
A purple postage stamp honored Elizabeth II (1958)
The Queen of Denmark (2010).
In the west, purple or violet is the color most associated with piety and faith.[59] In the year 1464, shortly after the fall of Constantinople, which stopped the supply of Tyrian purple to Europe, Pope Paul II changed the color worn by cardinals from purple to red, dyed with expensive cochineal. Bishops were given the purple color made then from a less-expensive mixture of indigo and cochineal.
In the Roman Catholic liturgy, purple symbolizes penitence; priests wear a purple garment when they hear confession. Purple is also worn by priests during Lent. Since the Vatican II Council (1962–65), priests may wear purple rather than black when officiating at funerals – it was decided that black, as the color of mourning, should not be a formal part of a religious service. Purple robes are also worn as part of the academic dress worn at graduation and university ceremonies by students of theology.
Purple is also often worn by senior pastors of Protestant churches and by bishops of the Anglican Communion.
In the Roman Catholic church, cardinals wear red and bishops wear purple
Katharine Jefferts Schori, Presiding Bishop of the Episcopal Church of the United States.
The color purple is also associated with royalty in the Christian aspect.
In Europe and America, purple is the color most associated with vanity, extravagance, and individualism. Among the seven major sins, it represents vanity. It is a color which is used to attract attention.[60]
Purple is the color most often associated with the artificial and the unconventional. It is the major color that occurs the least frequently in nature, and was the first color to be synthesized.[61]
Purple is the color most associated with ambiguity. Like other colors made by combining two primary colors, it is seen as uncertain and equivocal.[62]
In Britain, purple is sometimes associated with mourning. In Victorian times, close relatives wore black for the first year following a death ("deep mourning") , and then replaced it with purple or dark green trimmed with black. This is rarely practiced today.[63]
Han purple and Han blue were synthetic colors made by artisans in China during the Han dynasty (206 BC to 220 AD) or even earlier.
A Japanese woman in the kimono style popular in the Heian Period (794–1185)
Emperor Komyo of Japan. (1322–1380). Purple was the color of the aristocracy in Japan.
Purple is sometimes associated with the lesbian, gay, bisexual and transgender (LGBT) community. It is the symbolic color worn on Spirit Day, a commemoration that began in 2010 to show support for young people who are bullied because of their sexual orientation.[74][75] The purple hand is another symbol sometimes used by the LGBT community during parades and demonstrations.
Dominica is the only nation in the world to use purple or violet in its flag. It features a sisserou parrot, a national symbol.
The flag of the Province of León in Spain features a purple lion, the symbol of the old Kingdom of León (910–1230).
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| 拡張検索 | 「purple nonsulfur bacteria」「bromcresol purple」「purple bacteria」「purple urine bag syndrome」 |