siOsi
Free AI color + makeup analysis from one selfie
siOsi reads a single selfie and gives you a full color analysis: one of the 12 seasonal color types, your undertone, a gold vs silver verdict, and a personal palette with every shade named and copyable. Then it grades the makeup you're actually wearing across 15 diagnostic labs, checking things like foundation match, flashback, oxidation, coverage, creasing, and transfer.
Every lab result carries a confidence score, and when the photo can't settle something (mixed lighting, heavy filter, low resolution) siOsi says so instead of inventing an answer. The season quiz goes further: it reports three honest confidence buckets, names your runner-up season, and tells you which axis separates the two.
Your first analysis needs no signup. The site works in 9 languages, and the free tier limits volume, not features: everything a paying user sees, a free user sees too.
Features
- One-selfie color analysis: 12-season type, undertone, gold vs silver, and a copyable personal palette
- 15 makeup labs that grade an applied look, including foundation match, flashback, oxidation, coverage balance, pore visibility, transfer resistance, creasing, and glitter fallout
- Confidence scores on every result, with an explicit low-confidence flag when the photo can't support a verdict
- A photo-free ten-question season quiz that scores undertone, depth, softness, and contrast as separate axes and names the runner-up season
- 14 in-depth color analysis guides with full named palettes and the at-home tests that settle each question, including when those tests fail
- Shareable result pages
- First analysis free with no account; the paid tier adds volume, never gated features
Use Cases
- Find your color season without booking an in-person draping session
- Settle warm vs cool undertone when the vein test and the jewelry test disagree
- Decide gold or silver before buying jewelry
- Check whether your foundation will flash back before an event with flash photography
- Catch oxidation, creasing, or transfer in a look before you post it
- Pick a hair color that agrees with your season instead of fighting it
- Judge whether a Color of the Year pick is actually yours, an accent, or a skip
- Run a sanity check on wedding or photoshoot makeup while there's still time to fix it
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Comments
Hey, I'm Demetrius, solo maker of siOsi. The idea came from watching color analysis tools online: every one of them takes any photo, in any lighting, and hands back a confident answer. A yellow kitchen bulb will read a cool undertone as warm, and the app will still tell you you're an Autumn like it drew blood. So I built the opposite. siOsi runs your selfie through 15 diagnostic labs and attaches a confidence score to every single verdict, and when the photo can't support a call (mixed light, heavy filter), it says so instead of guessing. The season quiz won't even output "neutral undertone" because neutral is a tone, not an undertone. The other thing I care about: the free tier limits how many analyses you get, never what you see. A free user gets the same depth as a paying one. Happy to answer anything about how the analysis works, or argue about undertones. Try it and tell me where it gets you wrong, that feedback is genuinely the most useful thing you can give me.
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Comments
Hey, I'm Demetrius, solo maker of siOsi. The idea came from watching color analysis tools online: every one of them takes any photo, in any lighting, and hands back a confident answer. A yellow kitchen bulb will read a cool undertone as warm, and the app will still tell you you're an Autumn like it drew blood. So I built the opposite. siOsi runs your selfie through 15 diagnostic labs and attaches a confidence score to every single verdict, and when the photo can't support a call (mixed light, heavy filter), it says so instead of guessing. The season quiz won't even output "neutral undertone" because neutral is a tone, not an undertone. The other thing I care about: the free tier limits how many analyses you get, never what you see. A free user gets the same depth as a paying one. Happy to answer anything about how the analysis works, or argue about undertones. Try it and tell me where it gets you wrong, that feedback is genuinely the most useful thing you can give me.
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