Matching of like colors and adjacent colors

Quick answer：

Matching of like colors and adjacent colors in color theory refers to the combination of colors that are similar in hue or those that are next to each other on the color wheel. Like colors are those that are close in value and hue, while adjacent colors are those that are adjacent to each other on the color wheel. This technique is often used in design and art to create harmonious and visually appealing color schemes.