Color matching in flat design

Quick answer：

Flat design is a design style that emphasizes simplicity and minimalism. In terms of color matching, it often involves using a limited palette of colors to create a cohesive and visually appealing design. Key principles include using contrasting colors for emphasis, harmonizing similar colors for a unified look, and incorporating neutral tones for balance. Popular color combinations in flat design include monochromatic, complementary, and analogous schemes.