The Best Level 6 Ash Brown Hair Color References. In order to lighten level 6 hair, you will need to use bleach. Josie made this chart to visually show schwarzkopf professional’s color numbering system and how the tone direction is crucial to proper formulation.
In other words, ash brown is brown hair color with a blueish undertone. Normal to dry hair type. Dyes your hair a matte, medium ash brown.
