Color  

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-[[Image:Ultramarinepigment.jpg|thumb|right|200px|''[[Blue]]'' of the ultramarine variant, similar to the one used by [[Yves Klein]]]]+[[Image:Ultramarinepigment.jpg|thumb|right|200px|''[[Blue]]'' of the ultramarine variant, similar to the [[International Klein Blue]] used by [[Yves Klein]]]]
[[Image:Sunday Afternoon on the Island of La Grande Jatte (1884-1886) - Seurat.jpg|thumb|right|200px|''[[A Sunday Afternoon on the Island of La Grande Jatte]]'' ([[1884]]-[[1886]]) - [[Georges Seurat]]]] [[Image:Sunday Afternoon on the Island of La Grande Jatte (1884-1886) - Seurat.jpg|thumb|right|200px|''[[A Sunday Afternoon on the Island of La Grande Jatte]]'' ([[1884]]-[[1886]]) - [[Georges Seurat]]]]
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Blue of the ultramarine variant, similar to the International Klein Blue used by Yves Klein
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Blue of the ultramarine variant, similar to the International Klein Blue used by Yves Klein

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Color or colour is the visual perceptual property corresponding in humans to the categories called red, yellow, blue, black, etc. Color derives from the spectrum of light (distribution of light energy versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors. Color categories and physical specifications of color are also associated with objects, materials, light sources, etc., based on their physical properties such as light absorption, reflection, or emission spectra.

Typically, only features of the composition of light that are detectable by humans (wavelength spectrum from 400 nm to 700 nm, roughly) are included, thereby objectively relating the psychological phenomenon of color to its physical specification. Because perception of color stems from the varying sensitivity of different types of cone cells in the retina to different parts of the spectrum, colors may be defined and quantified by the degree to which they stimulate these cells. These physical or physiological quantifications of color, however, do not fully explain the psychophysical perception of color appearance.

The science of color is sometimes called chromatics. It includes the perception of color by the human eye and brain, the origin of color in materials, color theory in art, and the physics of electromagnetic radiation in the visible range (that is, what we commonly refer to simply as Light).

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Unless indicated otherwise, the text in this article is either based on Wikipedia article "Color" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.

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