In color light mixing, what color light is produced by mixing red light and green light, and why is its complementary color colored?

When red light and green light are mixed, yellow light is produced. 1. Primary color light According to the theory of three primary colors of human vision, equal amounts of red light and green light are added to produce white light. If red, green and blue are not added in equal amounts, other colors will be produced. These three colors are mixed in different proportions, and almost all colors can be produced. In other words, all colored lights can be mixed by different proportions of these three colored lights. Therefore, red light, green light and blue light are called three primary colors in photography (in painting, magenta, yellow and blue in painting pigments are mixed with three primary colors, but these three colors cannot be mixed, and the three primary colors dyes red, yellow and blue are mixed into black in equal amounts). 2. Complementary color light If any two kinds of light can be added to produce white light, this color light is called complementary color light. Experiments show that red light+green light = white light; Green light+tasting light = white light; Blue+yellow = white. The three complementary colors of red, green and blue are cyan, magenta and yellow respectively; Cyan, magenta and yellow are a mixture of two of the three primary colors, so they are also called secondary light. Red+green = yellow, green+blue = cyan, and blue+red = magenta. In other words. If one primary color is subtracted from white light, the colored light formed by the remaining two primary colors is the complementary light of the subtracted primary color. White light-red light = cyan light, white light-blue light = yellow light, and white light-green light = magenta light.