What does the term Undertone specifically refer to?

The term "undertone" specifically refers to the residual color effect seen under the main hair color. Understanding undertones is crucial in hair coloring because it affects how the final color will appear once the hair is dyed. While the visible color of the hair is what most people focus on, the undertone can significantly influence the overall look, especially in various lighting conditions.

For instance, hair may appear to be blonde at first glance, but if it has a warm undertone, it can reflect yellow or gold hues. Conversely, a cool undertone might bring out ashier tones. This understanding helps colorists select dyes and create beautiful, harmonious results that suit the client's complexion and preferences.

By recognizing the importance of undertones, professionals can offer personalized color services that enhance their clients' natural beauty and avoid undesired color results.