Similar colors are hues that share common characteristics, making them visually compatible. For example, shades of blue like navy and sky blue are similar because they both belong to the blue family, differing mainly in lightness and saturation. These colors can create a harmonious look when used together in design or art. In color theory, similar colors are often referred to as analogous colors. They are typically found next to each other on the color wheel, such as red, orange, and yellow. Using analogous colors can enhance a composition by providing a sense of unity and balance.