matching illustration with analogous colors

Quick answer：

An analogous color scheme is a color scheme that uses colors next to each other on the color wheel. It is often used in design and art to create a harmonious and balanced look. Matching illustrations with analogous colors involves selecting images that feature colors that are adjacent to each other on the color wheel, such as blues and greens or reds and oranges. This technique can help create a cohesive and visually appealing composition.