Almost all colors can be synthesized by red, green and blue primary colors (the original stimulus).
From the experiment, it is found that if the color of the three colors is added to the color which can not be synthesized, it will be found that it is composed of the other two colors.
In this case, if the primary colors are mixed and added, the color of the synthesis is positive, and the primary colors are added to the primary color as the negative quantity.
The synthesis of this color is called equal color. When the color of the original stimulus with three or three of the value of stimulating the color.
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