Red and blue are one of the three primary colors.
Three primary colors refers to the three basic colors in the color can no longer be decomposed, we usually say the three primary colors, that is, magenta, yellow, cyan (is cyan not blue, blue is the color of magenta and cyan mixed). The three primary colors can be mixed out of all the colors, at the same time add up to black, black and white gray belongs to the colorless system. The three primary colors of color: magenta, yellow, and cyan (sky blue). The color triad can be mixed out of all pigment colors.
Three Primary Colors Introduction and Application Principles
1. The three primary colors light model, also known as the RGB color model or the red, green and blue color model, is an additive color model that adds the color light of the three primary colors, red, green and blue, in varying proportions in order to produce a wide variety of color light. rgb is a device-dependent color space: different devices for the detect and reproduce specific RGB values differently, because color substances (fluorescents or dyes) and their individual response levels to red, green, and blue vary with manufacturer, and even with the same device at different times.
2. The human eye recognizes color based on the wavelength of the light it sees. Most of the colors in the visible spectrum can be made from three basic colors of light mixed in different proportions, the three basic colors of light is red (Red), green (Green), blue (Blue) three primary colors of light. These three kinds of light mixed in the same proportion, and reached a certain intensity, it is white (white light); if the intensity of the three kinds of light are zero, it is black (darkness).