What does the term spectrum refer to in hair coloring?

The term "spectrum" in hair coloring primarily refers to colored bands arranged by wavelengths of light. This concept illustrates how colors are not just isolated entities, but rather part of a continuum of light wavelengths. When it comes to hair color, understanding the spectrum helps professionals visualize and select colors that can harmoniously work together, as well as understand how different wavelengths interact with the hair and the way light reflects off colored hair.

This foundational knowledge is essential in color theory, enabling haircolorists to achieve the desired results through mixing and matching. A deep understanding of the spectrum allows colorists to predict how a specific shade will appear under different lighting conditions and how it may change over time. This aspect is crucial for offering clients the best advice on hair color choices that complement their features.