Four colors color matching

Quick answer：

Color matching, also known as color coordination, refers to the process of selecting colors that harmonize or complement each other. In the context of the four colors, it typically involves choosing combinations of red, green, blue, and yellow, which are the primary colors in the subtractive color model. These colors can be mixed to create a wide range of hues, shades, and tones. Color matching is crucial in design, fashion, and art, where it can influence the overall aesthetic appeal of a piece.