CIE Announces Two New Publications on Human Skin Colour Measurement and Light Pollution
The International Commission on Illumination (CIE) is pleased to announce the release of two significant new publications that advance the understanding and standardization of light and colour in human and environmental contexts.
CIE 256:2025 – Measurement of Human Skin Colour
This landmark report provides an authoritative framework for the standardized and reproducible measurement of human skin colour. Developed by CIE Technical Committee 1-92, the publication establishes a harmonized methodological foundation for evaluating, comparing, and reproducing skin colour across scientific, medical, and industrial fields.
Particularly notable is the report’s comprehensive treatment of measurement uncertainty and protocol consistency, addressing key variables such as instrumentation, illumination geometry, body location, and individual diversity. Together, these elements ensure that measurements are reliable, comparable, and scientifically robust — offering a critical reference for applications ranging from dermatology and imaging to cosmetics and colour technology.