Wella Koleston Color Intense 307/1 (Medium Ash Blonde) is a permanent hair color that delivers rich, long-lasting results with excellent gray coverage. The shade is a cool-toned, medium blonde with strong ash undertones, helping to neutralize unwanted warmth for a natural, sophisticated look. Ideal for those seeking a muted, dimensional blonde without brassiness. Formulated with high-performance pigments and a conditioning serum for shine and smoothness.