Natural light
Stand near a window or outside in daylight.
Avoid flashSUNDAY’s advanced colour technology
Upload a photo of your hair in natural light and our AI will match you to your ideal extensions in seconds.
Colour analysis runs in your browser — your photo is not uploaded to our servers.
Stand near a window or outside in daylight.
Avoid flashHair down without styling products or heat.
Avoid updosShow 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 try a sample photo
Preparing analysis…
Your SUNDAY match
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GPT-assisted styling tips (server)
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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.