Cool Hair Color Ratio Chart References. Red, yellow, blue, and 3 secondary colors: If you need clarification on the ratio, don't guess, as your hair color may not come out as desired.

Web december 20, 2022 previous article next article the hair color chart is a key tool of every good hair colorist. Yes, mixing two hair dye colors (or more!) can certainly be done! Look at the wheel to see what you need to combine to get your desired shade.