The base hair is toned to a cool smoky silver or charcoal shade. The hidden underlayer is dyed using a smoky denim blue shade containing grey and ash undertones, creating a smooth, cohesive cool-toned palette.
Idea 6: Honey Blonde Base with Royal Blue Underlayer
Step-by-Step Guide
Inverting cool and warm tones, pairing a warm honey blonde or golden blonde canopy with a rich royal blue underlayer produces an energetic, high-fashion contrast.
