Medium ash brown is a term for a hair color that is medium brown in color with an ash-tinged hue. The color is halfway between deep brown and light brown, and the tone is cool and ashen rather than warm and brassy.
Hair color is defined by its color, such as black, brown or blond, as well as its tone, such as ash, beige, red, blue and violet. Ash tones are cool, with more blue and violet tones to soften the color, whereas beige and red tones are warm. For example, a blond color with an ash tone has a silvery or platinum look, while a blond color with a red tone has a strawberry blond look.