What term is used to refer to the saturation, density, or concentration of color?

The term that refers to the saturation, density, or concentration of color is "level." In the context of color theory, the level indicates how light or dark a color is, with saturation defining the intensity or purity of that color. When discussing hair color, a higher level means a lighter color, while a lower level indicates a darker color. Understanding levels is crucial for color matching and creating the desired results in cosmetology, as it allows professionals to assess and manipulate colors accurately for their clients.

Hue refers specifically to the actual color (like red, blue, or green), while shade involves adding black to a color, which modifies its darkness without directly addressing concentration. Tone suggests the adjustment of color by adding gray, which can alter both the color and its intensity but does not specifically pinpoint saturation or density alone. Therefore, recognizing the term "level" is essential for any cosmetologist striving for precision in hair color treatments.