For real pigments, the results would be somewhat complicated by opacity and mixing behavior, and in practice adding a fourth pigment such as black may be helpful. Combining all three primaries (center) absorbs all the light, resulting in black. The standard subtractive primaries cyan, magenta, and yellow combine pairwise to make subtractive secondaries red, green, and blue (which are additive primaries, or in practice somewhat darker and less-saturated versions of typical additive primaries). An external source of illumination is assumed, and each primary attenuates (absorbs) some of that light. Projection televisions sometimes have three projectors, one for each primary color.Ī simulated example of (idealized) subtractive color mixing. A screen pixel uses a juxtaposition of these three primary colors. Red-green–blue additive mixing is used in television and computer monitors, including smartphone displays, to produce a wide range of colors. When the blue and red lights mix, the result is magenta. When green and blue lights mix, the result is cyan. When the red and green lights mix, the result is yellow. If all three primary colors of light are mixed in equal proportions, the result is neutral (gray or white). In the absence of light of any color, the result is black. Two beams of light that are superimposed mix their colors additively.īy convention, the three primary colors in additive mixing are red, green, and blue. The additive mixing of colors is not commonly taught to children, as it does not correspond to the mixing of physical substances (such as paint) which would correspond to subtractive mixing. ![]() Combining all three primaries (center) produces white. The primaries red, green, and blue combine pairwise to produce the additive secondaries cyan, magenta, and yellow. Additive primaries act as sources of light. A simulated example of additive color mixing.
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