The feeling of complementary colors matching

Quick answer：

Complementary color matching refers to the combination of colors that, when placed next to each other, create a sense of harmony and balance. This technique is often used in design and art to create visually appealing compositions. In the color wheel, complementary colors are opposite each other, such as blue and orange, yellow and purple, or red and green. When used together, they can enhance contrast and emphasize certain aspects of a design.