Color matching set

Quick answer：

A color matching set typically refers to a collection of pigments, paints, or other coloring agents that are designed to be mixed in various combinations to achieve different colors. These sets are commonly used in art, design, and other creative fields where precise color selection is important. They often include a range of primary colors, secondary colors, and perhaps a few neutrals or metallic shades, allowing users to mix and match to create a wide palette of hues.