What are the three basic colors?

Red, yellow and blue are the three primary colors.

Three colors refer to "basic colors" that cannot be obtained by mixing other colors. Because human eyes have pyramidal cells that perceive red, green and blue, color space can usually be represented by three basic colors, which are called "tricolor" or "tricolor".

Generally, it refers to the three primary colors of light: R (red), G (green) and B (blue). (The red, yellow and blue of pigments are called the three primary colors, but in fact, the truly scientific three primary colors should be magenta, yellow and cyan. Note: Blue is not blue, but a mixture of magenta and cyan. The three primary colors can be mixed into all colors, and add up to black at the same time. Black, white and gray belong to colorless system.

Most colors can be composed of red, yellow and blue in different proportions. Similarly, most monochromatic light can be decomposed into red, yellow and blue.

Extended data:

1, most colors in nature can be mixed by three primary colors in a certain proportion; On the contrary, any color can be decomposed into three primary colors.

2. The three primary colors should be independent of each other, that is, no primary color can be produced by mixing the other two primary colors.

3. The brightness of the colored light obtained by mixing the three primary colors is equal to the sum of the brightness of the primary colors participating in the mixing.

4. The proportion of the three primary colors determines the hue and saturation of the mixed color.

Among them, the human eye is most sensitive to red, green and blue. The human eye is like a three-color receiver system, and no primary color can be synthesized by the other two colors. Red, green and blue are the three primary colors, which have the widest color range. The three primary colors of red, green and blue are added in different proportions to synthesize mixed color, which is called additive mixed color.

The three primary colors of light can be composed of the following:

Combination color: red+green = yellow; Green+blue = green; Red+blue = magenta; Red+Green+Blue = White

References:

Baidu encyclopedia-tricolor