Color matching involves selecting two colors that complement each other. It is often used in design, fashion, and art to create harmonious and visually appealing combinations. The most common methods for matching two colors are complementary, analogous, and contrasting. Complementary colors are those that are opposite each other on the color wheel, like red and green. Analogous colors are those that are next to each other, such as red, red-orange, and orange. Contrasting colors are those that stand out against each other, like black and white.