Eazicolor 4-6 Medium Rich Brown Hair Color 60mlEazicolor 4 6 Medium Rich Brown Hair Color (60ml) Eazicolor 4 6 Medium Rich Brown is a professional permanent hair color that delivers a rich, warm brown at depth level 4. The shade code 4 6 places it in the deeper medium brown range the . 6 reflect introduces a warm red violet undertone that creates a rich, copper tinted warmth distinct from the . 5 mahogany family and the . 3 golden family. The result is a dimensional, luminous brown that glows with