What is the formula of red, yellow and blue collocation?

2, red+blue = green

3, yellow+blue = purple

4, red+orange = red orange

5, yellow+orange = yellow orange

6, blue+purple = blue-purple

7, red+purple = red purple

8, blue+green = turquoise

9, yellow+green = yellow-green

Extended data:

Color matching principle

The varieties of pigments should be used as little as possible, including black and white. Generally, you can mix up to four colors. Adding more than the fifth color can only increase black and gray, and the contrast color of colors together is black and gray.

Some people think that adding different pigments can enrich colors, but in fact it can only reduce purity. Experienced painters often use simple colors to achieve beautiful and elegant effects. Add a little black to pale yellow, and it becomes calm green. If the colors are properly mixed, there will be a feeling of moistening. The paint painted on the canvas seeped into the picture and retreated into the space. On the contrary, the color is dry and floating is not good.