In two-dimensional design, color purity refers to the intensity or vividness of a color. It is an aspect of color that can be adjusted to create different visual effects. Higher purity often results in more vibrant and eye-catching colors, while lower purity leads to more muted and subdued shades. The purity of a color is often expressed on a scale, with pure colors (like primary colors) having high purity and desaturated colors (like gray or brown) having low purity.