Fitzpatrick type / Individual Typology Angle from RGBwhat a photo can give, and how we take it.
Skin depth (L*), undertone, chroma and colour season from a white-balanced sample — described and used for your palette, not forced into a phototype.
What we report
Skin depth (L*), undertone, chroma and colour season from a white-balanced sample — described and used for your palette, not forced into a phototype.
Why not the clinical number itself
ITA requires calibrated CIE L*a*b* colorimetry under a known illuminant. sRGB from a phone under unknown light cannot yield it, and modern computational photography applies skin-tone-specific tone mapping that actively destroys colorimetric fidelity. Fitzpatrick was designed to predict UV erythema response, not to classify skin colour, and types IV–VI collapse most of the world into three bins.
Sources
- Osto et al. 2022 — ITA and Fitzpatrick are not equivalent — doi.org/10.1111/php.13562
- Almeida et al. 2023 — overview of skin typing scales — doi.org/10.3390/cosmetics10010014
Ratios of near-coplanar frontal distances, angles relative to the interpupillary line, and skin appearance — each with an error bar, each against a population you choose. Start an analysis or read the methodology.
How every bone-level measurement is taken here · all insights