What are the three primary colors? What are the three primary colors? What's the difference between them?

Three primary colors refer to the three basic colors that cannot be decomposed. What we usually call three primary colors, namely magenta, yellow and cyan (cyan is not blue, and blue is a mixture of magenta and cyan).

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.

Extended data:

The principle is different:

One or three primary colors

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.

Second, the three primary colors

1, three primary colors of color and light

Three primary colors of color and light-additive principle

People's eyes recognize colors according to the wavelength of light they see. Most colors in the visible spectrum can be composed of three basic colors of light in different proportions, namely, red, green and blue. When these three lights are mixed in the same proportion and reach a certain intensity, they appear white (white light); If the intensity of all three lights is zero, it is black (dark). This is addition principle, which is widely used in TV sets, monitors and other products that emit light actively.

2. Three primary colors of pigment

Three primary colors of pigment-principle of subtractive method

When printing, printing, painting, painting, etc. passively emit light through the reflection of the surface of the medium, the color of the object is the remaining part of the light source after being absorbed by the pigment, so the principle of its color quality is called the subtractive principle. The principle of subtractive color method is widely used in various passive lighting occasions. In the principle of subtractive method, the three primary colors are cyan, magenta and yellow respectively.

Baidu encyclopedia-tricolor

Baidu encyclopedia-tricolor