Natural light
Stand near a window or outside in daylight.
Avoid flashStep 1 — Upload
Loose & down
Hair down without styling products or heat.
Avoid updosMid-lengths
Show roots to ends — the AI reads the full tone range.
Avoid roots onlyUpload your hair photo
Take a fresh photo or choose one from your camera roll. Make sure your hair is the main focus.
or browse our Invisible Tape shades
Tap a shade to see depth, undertone, and product details — upload a photo above to run the AI match.
Step 2 — Analyse
Preparing analysis…
- Depth detection
- Root-to-tip mapping
- Warm / cool balance
- Shade library matching
- Recommendation generation
Your SUNDAY match
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Match confidence —
Depth level
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Undertone
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Tone type
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Where you sit in the SUNDAY range
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Top picks for your colour
Explore adjacent shades
Styling notes for your profile
GPT-assisted styling tips (server)
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Expert confirmation
Want a human second opinion?
Book a free shade consultation with a SUNDAY-certified educator — ideal if you colour at home or between salon visits.