Who it suits
Cool undertones, fair or deep skin with contrast, and anyone happy to stand out. Warm, golden skin can look sallow next to blue, so try it first.
This blue is a deep denim shade: bold but not neon. It looks striking on light hair and moody as a tint on darker hair. See it on your own hair in seconds, before anyone opens a tube of dye.
Free · no sign-up · the photo stays on your device


Cool undertones, fair or deep skin with contrast, and anyone happy to stand out. Warm, golden skin can look sallow next to blue, so try it first.
A semi-permanent blue over hair lightened to about level 8–9 for a true blue. Yellow left in the hair turns blue towards green, so a clean base matters.
Blue fades towards teal and green. Wash less, in cool water, and top up with a blue colour conditioner.
Open the studio and add a portrait in even light with your hair in the frame, or use the demo.
Open More tools, then Hair, and pick Blue from the vivid shades.
Set the intensity, drag the line between before and after, and save the card for your colourist.
It can as it fades over a yellow base. A well-toned, pale base and regular top-ups prevent most of it.
Only as a subtle tint that shows in the sun.
Take it as a direction, not a promise. The salon result depends on your current colour, your hair’s condition, the products and your colourist, and the light in your photo changes how a shade reads.
The demo model is an AI-generated photo. Previews are made in the studio on your device and show a direction, not a guaranteed salon result.