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primary colors |
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color /col·or/ (kul´er)
1. a property of a surface or substance due to absorption of certain light rays and reflection of others within the range of wavelengths (roughly 370–760 mμ) adequate to excite the retinal receptors. 2. radiant energy within the range of adequate chromatic stimuli of the retina, i.e., between the infrared and ultraviolet. 3. a sensory impression of one of the rainbow hues. complementary colors a pair of colors the sensory mechanisms for which are so linked that when they are mixed on the color wheel they cancel each other out, leaving neutral gray. confusion colors different colors liable to be mistakenly matched by persons with defective color vision, and hence used for detecting different types of color vision defects. primary colors a small number of fundamental colors; (a) in visual science, red, green, and blue, the colors specifically picked up by the retinal cones; (b) in painting and printing, blue, yellow, and red. pure color one whose stimulus consists of homogeneous wavelengths, with little or no admixture of wavelengths of other hues.
primary colors, a small number of fundamental colors. In visual science these are red, green, and blue, the colors specifically picked up by the retinal cones. Mixtures of varying proportions of the primary colors will yield white light in addition to the 150 discriminable hues of normal human vision. In painting and printing, the primary colors are red, blue, and yellow. When combined properly, these colors yield black and all other visible hues. See also prismatic colors. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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