What is the opposite color of yellow?

The opposite color of yellow on the color wheel is purple. Yellow and purple are considered complementary colors, meaning they are located directly across from each other on the color wheel and create a high contrast when placed next to each other. Mixing yellow and purple together can create a neutral color (brown or gray) depending on the proportions used. This combination is commonly used in color theory for design and art to create dynamic and visually appealing compositions.