How to adjust the high-grade ash in the color?

Complementary colors are all gray when put together, and different amounts or other colors will have different color tendencies. Adding white can make the hue clearer, but it is easy to powder.

In American teaching, it seems that there is a kind of ochre with ultramarine blue, and then white sets off gray, and with different colors, a very clear tone is obtained ~

At a deeper point, you use vision to mix colors and put different colors together, but if you are far enough away, you will find that vision has mixed colors and turned them into one color.

Take white interlining as an example. If the weather is warm, the gray part will be khaki (less)+ultramarine (least)+white (more).

If it is cold, use rose red (less)+light green (less)+white (more), and the color will be very sweet.

I'm used to the color matching method of high-grade gray, but it's not absolute. It depends.

Generally, the advanced gray painting method is to add a little complementary color to the primary color to bring up a beautiful color, but don't add too much complementary color, otherwise it will be dirty. For example, when drawing orange, you can add a little purple or rose red in the dark, and add a little red to green objects. Try more.