What factor should be considered when selecting hair color for a client?

When selecting hair color for a client, considering the client's skin tone is crucial. Skin tone significantly influences how various hair colors will appear against the person's complexion. A harmonious match can enhance the overall look, bringing out the client's natural beauty, while a mismatch may lead to an unflattering appearance.

For example, individuals with warm undertones in their skin often look best with hair colors that have warm hues, such as golden blondes, rich browns, or warm reds. Conversely, those with cool undertones may favor ash blondes, cool browns, or deep burgundies.

Other factors, while important, are secondary to skin tone. Hair type can affect color application and longevity, eye color can complement hair, and personal style plays a significant role in the overall aesthetic. However, aligning the hair color with the client's skin tone is foundational for a successful hair coloring experience.