Color matching 6 colors

Quick answer：

Color matching refers to the process of selecting and combining colors in a harmonious way. In design, 6-color matching systems, such as the RYB color wheel (red, yellow, blue), CMYK color model (cyan, magenta, yellow, black), or the RGB color model (red, green, blue), are commonly used to ensure a visually appealing color scheme. These systems help to understand color relationships and predict how colors will look together.