what is colour
Color, or colour (see spelling differences) is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, etc.Color derives from the spectrum of light (distribution of light power versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors.olor, or colour (see spelling differences) is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, etc.