This page was last changed on 20 September 2020, at 17:31. The name of the color indigo originally came from the indigo plant. This color is only an approximation of spectral indigo, since actual spectral colors are outside the gamut of the sRGB color system. To my eyes it seems merely deep blue. The color box on the right displays the web color indigo, the color indigo as it would be reproduced by artists' paints as opposed to the brighter indigo above (electric indigo) that is possible to reproduce on a computer screen. This is the actual color of the dye. City: Insomniac Press, 2004. The English and French subsequently began to encourage indigo cultivation in their colonies in the West Indies. The name of the color indigo originally came from the indigo plant. The Indigo plants native to Okinawa, Ryuku-ai, are unique from other varieties of Indigo because they yield a gentler, softer blue. "[24] If this is true, Newton's seven spectral colors would have been: The human eye does not readily differentiate hues in the wavelengths between what we today call blue and violet. By using this site, you agree to the Terms of Use Privacy Policy. The web color blue violet or deep indigo is a tone of indigo brighter than pigment indigo, but not as bright as electric indigo. The word indigo comes from the Latin for "Indian", as the dye was originally imported to Europe from India. According to local folklore, Ryuku-ai is beloved not only for its beautiful blue but also its ability to ward off snakes and insects. The Romans used the term indicum, which passed into Italian dialect and eventually into English as the word indigo. Isaac Newton named and defined indigo as a spectrum color when he divided up the spectrum into the seven colors of the rainbow. And this I did, partly because my own eyes are not very critical in distinguishing colours, partly because another, to whom I had not communicated my thoughts about this matter, could have nothing but his eyes to determine his fancy in making those marks. 'Tropical Indigo' is the color that is called añil in the Guía de coloraciones (Guide to colorations) by Rosa Gallego and However, the correspondence of this definition with colors of actual indigo dyes is disputed. It is traditionally regarded as a color in the visible spectrum, as well as one of the seven colors of the rainbow: the color between blue and violet; however, sources differ as to its actual position in the electromagnetic spectrum. Indigo dye also is used to dye denim cloth, which is used to make what are called blue jeans (they should really be called indigo jeans). [38], This article is about the color. [9] Before the Revolutionary War, indigo accounted for more than one-third of the value of exports from the American colonies.[10]. When dyeing cloth, the pigment is then boiled in a vat of water; the cloth (usually made from yarns of hemp) is inserted into the vat for absorbing the dye. Content is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. Blue dye can be made from two different types of plants: the indigo plant, which produces the best results, and from the woad plant Isatis tinctoria, also known as pastel. Learn how and when to remove this template message, W3C TR CSS3 Color Module, SVG color keywords, "Early pre-Hispanic use of indigo blue in Peru", "Eliza Lucas Pinckney:Indigo in the Atlantic World", "Getting the blues: the pastel trade in southwest France", "Spectrum of Electromagnetic Radiation ( EMR )", "VIBGYOR Color Segmentation – File Exchange – MATLAB Central", "Think Blue 2008: a Before and After Tale of Silly Turf Battles and Redemptive Communication". The spectral range of indigo is between 450 and 420 nanometers. For other uses, see, "Violet-blue" redirects here. Many societies make use of the Indigofera plant for producing different shades of blue. When plotted on the CIE chromaticity diagram, this color is at 435 nanometers, in the middle of the portion of the spectrum traditionally considered indigo, i.e., between 450 and 420 nanometers. According to Isaac Asimov, "It is customary to list indigo as a color lying between blue and violet, but it has never seemed to me that indigo is worth the dignity of being considered a separate color. [6], The Ancient Greek term for the dye was Ἰνδικὸν φάρμακον ("Indian dye"), which, adopted to Latin (second declension case) as indicum or indico and via Portuguese gave rise to the modern word indigo. The Ancient Greek language word for the dye is indikon. Comparison of blue, indigo, violet and purple, https://simple.wikipedia.org/w/index.php?title=Indigo&oldid=7122439, Creative Commons Attribution/Share-Alike License, Violet (Electric Violet) (Middle Violet) (Blue Purple), Light Lavender Mist (Xona.com Color List "Lavender Light ") (Hex: #F5F5FD) (RGB: 245, 245, 253), Lavender Mist (web color Lavender) (Hex: #E6E6FA) (RGB: 230, 230, 250), Light Melrose (Melrose Light (Xona.com color list)) (Hex: #E7E4EF) (RGB: 231, 228, 255), Light Logan (Logan Light (Xona.com color list)) (Hex: #D9D8EA) (RGB: 217, 216, 234), Light Periwinkle (Periwinkle (Crayola)) (Hex: #C5D0E6) (RGB: 197, 208, 230), Periwinkle (Lavender Blue) (PerBang.dk) (Maerz and Paul) (Hex: #CCCCFF) (RGB: 204, 204, 255), Melrose (Xona.com color list) (Hex: #C7C1FF) (RGB: 199, 193, 255), Light Chetwode Blue (Chetwode Blue Light (Xona.com color list)) (Hex: #C5C2EF) (RGB: 197, 194, 239), Light Moody Blue (Moody Blue Light (Xona.com color list)) (Hex: #C1BBEC) (RGB: 193, 187, 236), Light Steel Blue (web color) (Hex: #B0C4DE) (RGB: 176, 196, 222), Panama Blue (Plochere) (Hex: #B3BCE2) (RGB: 179, 188, 226), Logan (Xona.com color list) (Hex: #AAA9CD) (RGB: 170, 169, 205), Rich Periwinkle (Hex: #9999FF) (RGB: 153, 153, 255), Deep Periwinkle (Hex: #8080FF) (RGB: 128, 128, 255), Chetwode Blue (Xona.com color list) (Hex: #8581D9) (RGB: 133, 129, 217), Moody Blue (Xona.com color list) (Hex: #7F76D3) (RGB: 127, 118, 211), Toolbox (Crayola colored pencils) (Hex: #746CC0) (RGB: 116, 108, 192), Medium Periwinkle (Deep Periwinkle (Pantone TPX 17-3932)) (Hex: #7A83BF) (RGB: 122, 131, 191), Light Blue-Violet (Blue-Violet Light (Xona.com Color List)) (Hex: #C77DF3) (RGB: 199, 125, 243), Medium Slate Blue (web color) (Hex: #7B68EE) (RGB: 123, 104, 238), Slate Blue (web color) (Hex: #6A5ACD) (RGB: 106, 90, 205), Majorelle Blue (Hex: #6050DC) (RGB: 96, 80, 220), Light Indigo (Indigo Light (Xona.com Color List)) (Hex: #4081A4) (RGB: 64, 129, 164), Steel Blue (web color) (Hex: #4682B4) (RGB: 70, 130, 180), Bright Indigo (Indigo (Crayola)) (Hex: #5D76CB) (RGB: 93, 118, 203), Light Gulf Blue (Gulf Blue Light (Xona.com Color List)) (Hex: #3560A6) (RGB: 53, 96, 166), Denim (Crayola) (Hex: #1560BD) (RGB: 21, 96, 189), Han Blue (PerBang.dk) (Hex: #5218FA) (RGB: 82, 24, 250), Electric Ultramarine (Ultramarine (Maerz and Paul)) (Hex: #3F00FF) (RGB: 63, 0, 255), Westminster (Maerz and Paul) (Hex: #5F00FF) (RGB: 95, 0, 255), Lobelia (Near Indigo) (Maerz and Paul) (Hex: #6700FF) (RGB: 103, 0, 255), INDIGO (Electric Indigo) (Middle Indigo) (Hex: #6F00FF) (RGB: 111, 0, 255), Pansy (Extreme Indigo) (Maerz and Paul) (Hex: #7700FF) (RGB: 119, 0, 255), French Indigo (Indigo (pourpre.com)) (Vivid Indigo) (Hex: #791CF8) (RGB: 121, 28, 248), Lavender Indigo (www.99colors.net) (Hex: #9457EB) (RGB: 148, 87, 235), Deep Indigo (Blue-Violet (web color)) (Hex: #8A2BE2) (RGB: 138, 43, 226), Royal Purple (Crayola) (Hex: #6B3FA0) (RGB: 107, 63,160), Vintage Indigo (Pantone TPX 19-3929) (Hex: #664D64) (RGB: 102, 77, 100), Indigo (Pantone) (Pantone TPX 19-3215) (Hex: #503E5C) (RGB: 80, 62, 92), Dotcom (Resene color list) (Hex: #41415D) (RGB: 65, 65, 93), Pigment Indigo (Indigo (web color)) (Hex: #4B0082) (RGB: 75, 0, 130), Dark Slate Blue (web color) (Hex: #483D8B) (RGB: 72, 61, 139), Persian Indigo (Regimental) (Maerz and Paul) (Hex: #32127A) (RGB: 50, 18, 122), Blue Indigo (Pantone TPX 19-3928) (Hex: #485470) (RGB: 72, 84, 112), Dark Imperial Blue (Imperial Blue (ISCC-NBS)) (Hex: #00416A) (RGB: 0, 65, 106), Imperial Blue (Vexillological) (Maerz and Paul) (Hex: #002395) (RGB: 0, 35, 149), Ultramarine (Pigment) (www.99colors.net) (Hex: #120A8F) (RGB: 18, 10, 143), Midnight Blue (web color) (Hex: #191970) (RGB: 25, 25, 112), Dark Midnight Blue (Midnight Blue (Crayola)) (Hex: #003366) (RGB: 0, 51, 102), Prussian Blue (Berlin Blue) (www.99colors.net) (Hex: #003153) (RGB: 0, 49, 83), Dark Indigo (www.99colors.net) (Hex: #310062) (RGB: 49, 0, 98), Gulf Blue (Xona.com color list) (Hex: #051657) (RGB: 9, 22, 87), Japanese Indigo (Japanese traditional colors) (Hex: #264348) (RGB: 38, 67, 72).
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