Cool Blue Hair Dye Shades Ideas. Web blue hair colors can come in different shades, from light icy blues to dark navy blues. Web the garnier nutrisse ultra color in the dark intense indigo shade is a good bet if you’re looking for a vibrant blue hair dye.

Depending on the look you are going for, each has its benefits. It can be used on dark. Top 10 best blue hair dyes 2023.