White wiki:
>For other uses, see White (disambiguation). White is a color (more accurately it contains all the colors of the visible spectrum and is sometimes described as an achromatic colorâblack is the absence of color) that has high brightness but zero hue. The impression of white light can be created by mixing (via a process called "additive mixing") appropriate intensities of the primary color spectrum: red, green and blue, but it must be noted that the illumination provided by this technique has significant differences from that produced by incandescence (see below).
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Brown wiki:
>For other uses, see Brown (disambiguation). Brown is a color produced by mixing small intensities of red and green, orange and blue, or yellow and purple pigment. Brown exists as a color perception only in the presence of a brighter color contrast.
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