Color scheme of 18 colors

Quick answer：

A color scheme of 18 colors refers to a collection of 18 different colors that are coordinated and harmonized with each other. Such a scheme can be used in various design fields, such as graphic design, interior design, and fashion. In creating a color scheme with 18 colors, designers typically consider factors like color theory, contrast, and the emotional impact of colors. They may use techniques such as monochromatic, complementary, triadic, or tetradic color schemes to achieve balance and visual interest.