Complementary colors, found opposite each other on the color wheel, create a striking contrast when placed side by side. This contrast can enliven a piece and create visual interest, as each hue complements and intensifies the other. When mixed together, complementary colors can also neutralize each other, creating muted tones such as browns and greys. Artists often utilize the power of complementary colors to add vibrancy and balance to their work, harnessing their dynamic relationship to produce compelling and visually dynamic art pieces.