Which technique involves isolating blonde strands while coloring the remaining hair darker?

The technique that involves isolating blonde strands while coloring the remaining hair darker is known as reverse highlighting. In this process, the stylist applies a darker color to the majority of the hair while leaving certain strands light, effectively creating a contrast that highlights the brighter strands against a deeper base. This method is often used to create depth and dimension in the hair by emphasizing the light strands, which can result in a more dynamic look.

Reverse highlighting is distinct from other techniques like streaking, which typically refers to adding lighter strands to a darker base, tone on tone, which involves using similar shades to enhance the natural hair color or add subtle variations, and shadowing, which often refers to creating a darker effect at the roots or lower sections of hair. Reverse highlighting is particularly valuable for clients looking to maintain some lighter tones while embracing a richer, darker overall color.