Observed arrival · 2026-09-06
OpenColor turns a ColorReader into a cross-standard color matcher
A browser app connects to a Datacolor ColorReader over Bluetooth and matches measured colors against RAL, Pantone, NCS, Munsell, paint fandecks, and other named systems.
Field notes
The matching process starts with a CIELAB reading from a CR100 device and compares it against a multi-system reference collection using CIEDE2000 rather than relying on displayed RGB swatches. The page identifies roughly 11,400 references spanning eight systems and exposes both a CORS-open JSON endpoint and a downloadable all.json dataset. Scans and history are described as client-side, while physical scanning depends on Chrome or Edge with Web Bluetooth and compatible hardware.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue