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A comparison between a typical normalized M cone's spectral sensitivity and the CIE 1931 luminosity function for a standard observer in photopic vision.. In the CIE 1931 model, Y is the luminance, Z is quasi-equal to blue (of CIE RGB), and X is a mix of the three CIE RGB curves chosen to be nonnegative (see § Definition of the CIE XYZ color space).
Gradient RGB/CMY color wheel Seven-color and twelve-color color circles from 1708, attributed to Claude Boutet Wilhelm von Bezold's 1874 Farbentafel. A color wheel or color circle [1] is an abstract illustrative organization of color hues around a circle, which shows the relationships between primary colors, secondary colors, tertiary colors etc.
The color wild watermelon is displayed at right.. Ultra red is a color formulated by Crayola in 1972. In 1990, the name of the color was changed to wild watermelon.. With a hue code of 350, this color is within the range of carmine colors.
The ribbon of Saint George (also known as Saint George's ribbon, the Georgian ribbon; Russian: Георгиевская лента, romanized: Georgiyevskaya lenta; and the Guards ribbon in Soviet context) [a] is a Russian military symbol consisting of a black and orange bicolour pattern, with three black and two orange stripes.
The color Byzantium is a particular dark tone of purple.It originates in modern times, and, despite its name, it should not be confused with Tyrian purple (hue rendering), the color historically used by Roman and Byzantine emperors.
Periwinkle blue is the color for esophageal and stomach cancer awareness ribbons, and for anorexia nervosa and bulimia. It is also the color for pulmonary hypertension awareness ribbons. [citation needed] Periwinkle was added to the Crayola palette in 1949. [6] In the late 1990s, the Anaheim Angels changed their uniform to include this color. [7]
In color theory, the line of purples or purple boundary is the locus on the edge of the chromaticity diagram formed between extreme spectral red and violet. Except for these endpoints of the line, colors on the line are non-spectral (no monochromatic light source can generate them).
[53] [56] [57] In optics, violet is a spectral color; it refers to the color of any different single wavelength of light on the short wavelength end of the visible spectrum, between approximately 380 and 450 nanometers, [58] whereas purple is the color of various combinations of red, blue, and violet light, [50] [55] some of which humans ...