The proximity colors in purity

Quick answer：

In color theory, 'proximity colors' refer to the hues that are closest to a given color in terms of chromatic proximity. These colors are often used in design to create a harmonious and cohesive look. When discussing 'purity' in this context, it likely refers to the intensity or saturation of the colors. The concept is relevant in fields such as graphic design, art, and color science, where understanding the relationships between colors is crucial.