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Indigo is a term used for a number of hues in the region of blue.The word comes from the ancient dye of the same name.The term "indigo" can refer to the color of the dye, various colors of fabric dyed with indigo dye, a spectral color, one of the seven colors of the rainbow as described by Newton, or a region on the color wheel, and can include various shades of blue, ultramarine, and green-blue.
Indigo dye is an organic compound with a distinctive blue color. Indigo is a natural dye extracted from the leaves of some plants of the Indigofera genus, in particular Indigofera tinctoria . Dye-bearing Indigofera plants were commonly grown and used throughout the world, particularly in Asia, with the production of indigo dyestuff economically ...
Kuntze (1891) [2] Lactarius indigo, commonly known as the indigo milk cap, indigo milky, the indigo (or blue) lactarius, or the blue milk mushroom, is a species of agaric fungus in the family Russulaceae. It is a widely distributed species, growing naturally in eastern North America, East Asia, and Central America; it has also been reported in ...
It is an approximation of the color violet at about 400 nanometers as plotted on the CIE chromaticity diagram, in the middle of the violet range of from 380 nanometers to 420 nanometers, assuming indigo as a separate spectrum color from 420 to 450 nanometers. Other names for this color are middle violet or simply violet.
The list shows the color swatch and its name. Hovering over the color box shows the HSV, RGB, and #hex values for the color in the tool tip. All values and conversions are in the sRGB color space, which is an inappropriate assumption for some entries.
Brown. Brown colors are dark or muted shades of reds, oranges, and yellows on the RGB and CMYK color schemes. In practice, browns are created by mixing two complementary colors from the RYB color scheme (combining all three primary colors). In theory, such combinations should produce black, but produce brown because most commercially available ...
Indigofera tinctoria, also called true indigo, is a species of plant from the bean family that was one of the original sources of indigo dye. Description [ edit ] True indigo is a shrub 1–2 metres (3 ft 3 in – 6 ft 7 in) high.
Indigofera is a varied genus that has shown unique characteristics making it an interesting candidate as a potential perennial crop. [clarification needed] Specifically, there is diverse variation among species with a number of unique characteristics. Some examples of this diversity include differences in pericarp thickness, fruit type, and ...