What type of color is applied to cancel out unwanted tones in hair?

The application of a complementary color is fundamental in hair coloring, particularly for neutralizing unwanted tones. In color theory, complementary colors are those that sit opposite each other on the color wheel. This means that if a specific tone is perceived as undesirable, a color from the opposite side can counteract it effectively.

For example, if hair has an unwanted yellow tone, using a violet-based color can balance it out because violet is directly opposite yellow on the color wheel. Similarly, green tones can be subdued with a red-based formula, and orange tones can be neutralized with a blue-based color. This principle is essential for hairstylists when correcting color or achieving a specific shade, ensuring they can offer clients the best possible results.

The other options, such as primary, secondary, and neutral colors, do not serve the same purpose in the context of canceling unwanted tones. Primary colors form the basis of all other colors, secondary colors are created by mixing primary colors, and neutral colors typically do not have a direct function in correcting or canceling out specific tones.