colors that are similar

Quick answer：

Colors that are similar refer to hues that are close to each other on the color wheel. They are often used together in design and art to create harmony. This concept is based on the color theory which categorizes colors into primary, secondary, and tertiary colors, and describes their relationships through the color wheel. Similar colors can be found by moving a small distance either clockwise or counterclockwise from a chosen hue on the color wheel.