OUR METHOD · VERSION 2026.07
How your color report is made
What happens between a photo upload and a 12-season palette—what uses AI, what is rule-based, and where uncertainty remains.
THE SHORT VERSION
A photo is evidence, not ground truth.
Style Look Lab estimates how your coloring appears in the photos you submit. It does not take a physical reading of your skin, hair, or eyes, and a phone camera is not a colorimeter. The report is designed to turn imperfect visual evidence into practical styling guidance while keeping the uncertainty visible.
FROM INPUT TO REPORT
The pipeline at a glance
Three layers do different jobs. Keeping them separate makes the result easier to explain—and easier to challenge when the evidence is weak.
- 01 · INPUT
Check the photo
Upload checks confirm you submitted one to three photos and that each file is a supported image format within the size limit.
- 02 · EVIDENCE
Estimate color
A structured vision model estimates observed and white-balanced color evidence for skin, iris, and hair across up to three photos.
- 03 · GUIDANCE
Build the report
Deterministic rules derive core traits; a second structured model uses that evidence to choose a 12-season label and create a usable palette.
Start with the cleanest evidence you can
You can submit one to three photos. Indirect daylight, a neutral setting, minimal makeup, no filter, and an unobstructed face give the system the best chance of seeing your natural color relationships. Multiple photos can reveal whether a reading stays stable when the scene changes, but they cannot rescue several consistently poor inputs.
Treat color values as estimates
The first structured vision model reviews the submitted photos and estimates CIELAB values for visible skin, iris, and hair. It returns both observed color—the appearance recorded by the camera—and a white-balanced estimate intended to reduce the influence of the scene. The corrected values use a D65, 2° reference convention so the internal comparisons share one frame of reference.
The model considers evidence across multiple visible areas, image quality, lighting, highlights, makeup, and agreement between photos. Visible eye whites or another neutral reference can support white-balance reasoning, but they are not mandatory. These values remain photo-based model estimates, not readings from a calibrated colorimeter or spectrophotometer.
Derive the core traits with rules
After the color-evidence step, deterministic code derives four traits used by the rest of the report: temperature, depth, clarity, and facial contrast. Temperature and depth come from the white-balanced skin estimate; clarity combines feature, skin, and iris signals with a LAB-chroma fallback; contrast compares the estimated lightness of skin and hair.
This layer is deliberately rule-based: the same accepted inputs produce the same derived traits. It keeps important transformations inspectable instead of asking a language model to invent every conclusion in one pass.
Turn evidence into a season and palette
A second structured vision model receives the photo evidence, the derived traits, and the submitted images. It selects one label from a 12-season framework and records its confidence. This is a model judgment built on structured evidence—not a direct laboratory fact and not a simple lookup from one skin-tone number.
The same stage creates wardrobe-core colors, seasonal highlights, signature colors, and caution colors, with HEX and LAB values plus guidance about where a color works best. Local weather can shape timely clothing suggestions, but it is not allowed to change the underlying color readings, white balance, or seasonal boundaries.
Read confidence in context
The report can expose several kinds of confidence: whether a color sample appears usable, whether white-balance reasoning had a trustworthy reference, whether multiple photos agree, and how strongly the final evidence supports the selected season. Quality flags explain common risks such as mixed light, shadows, clipping, blur, makeup, or limited reference areas.
A neighboring season may be shown as useful context, but it is not necessarily a statistically ranked runner-up. When evidence is weak or contradictory, the practical response is to read the palette cautiously and retake the photos under cleaner conditions.
Know what a photo cannot settle
Automatic white balance, HDR, compression, display settings, dyed hair, colored contacts, foundation, self-tanner, filters, and reflected colors can all change the evidence. More photos help with consistency; they do not turn a camera into a calibrated instrument.
Seasonal color analysis is a styling framework, not a medical or biological classification. Different frameworks—or a careful human draping session—can place the same person in a neighboring category. If repeated real-world draping in indirect daylight conflicts with the report, trust what you consistently see and use the report as a hypothesis to test.
Keep the biometric boundary clear
Photos are sent to the AI providers needed to generate your report and are stored securely while your account exists. Style Look Lab does not sell your photos or use them to train its own models. Contact support to request verified account deletion and removal of associated photos.
The service does not create a faceprint or facial-recognition template, match your face against an identity database, or use your analysis to identify you. The links below describe the current privacy and biometric-data practices in full.
CLEAR BOUNDARIES
What we do not claim
Not an instrument reading
The reported color values are estimates from photos, not measurements from a calibrated colorimeter or spectrophotometer.
Not an identity label
We do not assign race, ethnicity, a medical skin type, or a permanent biological classification.
Not universal certification
A 12-season label belongs to a styling framework. It is not an official certification or the only objectively valid interpretation.
Not facial recognition
Quality checks do not create a faceprint, recognize who you are, or match you against other people.
Sources & limitations
These references support skin-color measurement, color-difference calculations, representation, and the limits of photographic evidence. Style Look Lab estimates from user-supplied photos; it is not a colorimeter, medical test, or scientific validation of the 12-season styling taxonomy.
- CIE 256:2025 — Measurement of Human Skin Colour — Measurement conditions and limits for human skin colour.
- He et al. (2022) — Facial skin colour from digital images — Evidence on estimating facial skin colour from images.
- Wang et al. (2018) — Skin colour measurement variability — Shows why location and measurement conditions affect readings.
- Sharma, Wu & Dalal (2005) — The CIEDE2000 color-difference formula — Reference for perceptual colour-difference calculations.
- Monk Skin Tone Scale — official overview — A 10-tone representation scale; it does not determine a color season.