Color matching: analogous colors, monochromatic system

Quick answer：

Analogous colors refer to colors that are next to each other on the color wheel, such as blue, blue-green, and green. Monochromatic colors, also known as a monochromatic system, involve using various shades and tints of a single hue, creating a harmonious and cohesive color scheme. These color theories are commonly used in design, art, and fashion to create visually appealing and balanced color combinations.