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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]
K indicates the color temperature in kelvins, and M indicates the color temperature in micro reciprocal degrees. The color temperature of the electromagnetic radiation emitted from an ideal black body is defined as its surface temperature in kelvins , or alternatively in micro reciprocal degrees (mired). [ 11 ]
Burgundy is a purplish red. [4] [5]European Union passports are usually burgundy in color. The color burgundy takes its name from the Burgundy wine in France.When referring to the color, "burgundy" is not usually capitalized.
[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 ...
A rainbow is a decomposition of white light into all of the spectral colors. Laser beams are monochromatic light, thereby exhibiting spectral colors. A spectral color is a color that is evoked by monochromatic light, i.e. either a spectral line with a single wavelength or frequency of light in the visible spectrum, or a relatively narrow spectral band (e.g. lasers).
Plum is a purple color with a brownish-gray tinge, like that shown on the right, or a reddish purple, which is a close representation of the average color of the plum fruit. As a quaternary color on the RYB color wheel, plum is an equal mix of the tertiary colors russet and slate. [2] [3] The first recorded use of plum as a color name in ...
The color amaranth purple is displayed at right. This color is a representation of the color of purple amaranth flowers. [6] The common name purple aramanth applies to two species: Amaranthus blitum and Amaranthus cruentus. The first recorded use of amaranth purple as a color name in English was in 1912. [7]
Colors that can be produced by visible light of a narrow band of wavelengths (monochromatic light) are called pure spectral colors.The various color ranges indicated in the illustration are an approximation: The spectrum is continuous, with no clear boundaries between one color and the next.