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Subtractive Color Process
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A color theory based on the subtraction of different colors from white light in an infinite number of combinations allowing full color to be perceived by the human eye. The primary colors of white light are red, green and blue (RGB). We are able to see color because different objects reflect and absorb, or subtract, the primary colors of light differently. For example, we see an object as yellow because it absorbs (or subtracts) blue light from white light. Since the blue light has been absorbed, the red light and green light are leftover and are reflected back to our eyes. Red light and green light combine to make yellow and so we see the color of the object as yellow. If 100% of the red light is subtracted from white light the resulting color is cyan. (The green light and blue light are the remaining primary light colors after the red is removed and the green and blue combine to form cyan). If 100% of the green light is subtracted from white light the result is magenta (red light and blue light form magenta) and when 100% of the blue light is subtracted from white light the result is yellow (red light and green light form yellow). Cyan, magenta, and yellow (CMY) are the subtractive primary colors, and are the primary colors used for creating pigments for color reproduction in process color printing.
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