Ad complementary colors, analogous colors

Quick answer：

Complementary colors are pairs of colors that, when combined, cancel each other out to form a gray or white color. In advertising, complementary colors can be used to create a strong contrast that draws attention. Analogous colors are colors that are next to each other on the color wheel and are used to create a harmonious and cohesive look. In advertising, analogous colors can be used to create a soothing or pleasant atmosphere.