In hair color terminology, what does the term 'level' refer to?

In hair color terminology, 'level' specifically refers to the lightness or darkness of the hair color. This system is often measured on a scale that typically ranges from 1 to 10, with 1 being the darkest (black) and 10 being the lightest (platinum blonde). Understanding the level of hair color is crucial for colorists as it helps them determine how to achieve the desired shade during a coloring service. This concept is fundamental to various coloring techniques and allows professionals to create customized looks for their clients by taking their natural hair color and the desired result into account.

Other aspects, such as tone or product brand, while relevant in the broader context of hair coloring, do not define 'level' in the way that lightness or darkness does. Level is specifically focused on the intensity of the color, making it an essential term in achieving the right results in hair coloring.