How to adjust the color of paint?

Red plus yellow becomes orange, red plus blue becomes purple, and yellow plus blue becomes green. Red, yellow and blue are the three primary colors, and orange, purple and green are the three primary colors. Intermittent colors and intermediate colors will turn into various grays. But all grays should have a color tendency, such as blue gray, purple gray, yellow gray and so on.

Scarlet+black = brown.

Sky blue+yellow = grass green, tender green

Sky blue+black+purple = light blue purple

Grass green+a little black =? dark green

Sky blue+black = light gray blue.

Sky blue+grass green = blue-green

White+Red+Black Small Amount = _ Stone Red

Sky blue+black (small amount) = dark blue.

White+yellow+black = mature brown

Rose red+black (small amount) = deep red.

Red+yellow+white = the color of the character.

Rose+white = pink rose.

Blue+white = pink blue

Yellow+white = beige

Extended data paint manufacturers generally have black, white, red, green, blue, yellow, cyan, purple and other color pastes or masterbatch for color matching. In the process of color matching of solid color coatings, a color matching method is adopted, in which the white base material in the light-colored area is added with high-concentration color paste less than 5%, and the quantitative color paste is strengthened with varnish in the dark-colored area.

The color matching of transparent color is selected from some transparent pigment pastes or dye solutions. The color change of transparent color is also affected by the thickness of coating and substrate, so it is necessary to compare the specified thickness and substrate in actual color matching. The color matching of metallic paint should not only follow the basic principles of pigment blending, but also consider the influence of self-luminous metallic pigments on color, which is relatively complicated.