Wella Koleston Color 6.7 Chocolate Brown is a permanent hair color that delivers a rich, warm chocolate brown shade with vibrant shine. Its advanced formula helps color pigments penetrate deep into the hair for long-lasting results and even coverage. The color provides up to 100% grey coverage while keeping hair moisturized, soft, and healthy-looking. The nourishing formula also helps maintain shine and smoothness after coloring, making it suitable for all hair types