Which color on the color wheel is opposite to orange?

The color opposite to orange on the color wheel is blue. This relationship is based on the principles of color theory, specifically the concept of complementary colors. Complementary colors are those that are located directly across from each other on the color wheel; they enhance each other's vibrancy when placed side by side and can neutralize each other when mixed.

In the case of orange, which is a secondary color made by mixing red and yellow, its complementary color, blue, is a primary color. When orange and blue are combined, they tend to cancel each other out, resulting in a more muted or gray tone. This principle is important in hair coloring and design as it aids in understanding how to balance colors and achieve the desired results, such as neutralizing unwanted tones in hair.