ColorScan Pro: RAL & Munsell

Boud Brothers

Contains adsIn-app purchases

About this app

Point your camera at a wall, a fabric, a car door. ColorScan Pro tells you
which reference it is — across six professional systems at once.

TWO PHOTOS INSTEAD OF ONE
A colour photographed under a bulb comes out orange. Under a cloudy sky,
blue. Most apps hand you that error. ColorScan Pro takes two shots in a
row — one without flash, one with — and subtracts them. What remains is the
surface lit by a known source, with the room's tint mathematically removed.
No grey card needed.

MEASURED, NOT GUESSED
Matching uses CIEDE2000, the international standard for colour difference,
not a naive RGB distance. Every match shows how close it really is, so you
know whether to trust it.

SIX SYSTEMS, CROSS-LINKED
• RAL Classic, Design and Effect — 2 531 references
• Munsell — 1 604 renotation chips
• FS 595C — 616 US Federal Standard colours
• BS 4800 — 130 British Standard colours
• Zolpan (Cromology) — 1 649 shades across 4 collections
• Sanzo Wada — the 348 combinations of the 1933 Japanese dictionary

Find a colour in one, jump to its equivalent in all the others.

IT TELLS YOU WHEN IT DOUBTS
Too dark, overexposed, a reflection, several colours in frame — the app
warns you while you can still fix it. And if the area really does hold more
than one colour, it shows each of them with its exact share rather than
averaging them into a colour that exists nowhere.

BUILT FOR EVERY PHONE
On first launch the app measures your device and adapts: analysis detail,
capture resolution, sensor timing. Modest hardware stays responsive, fast
hardware gets more precision. You can override the setting yourself.

ALSO INSIDE
• Eyedropper with ×2 / ×4 / ×8 magnification and live reading
• White balance calibration — refused if the reference isn't truly neutral
• HEX, RGB, CMYK, HSL, Lab for every colour
• Your own palettes, saved and shareable
• Works offline. Every chart is on your phone.
• English, French, Arabic, Chinese

Zolpan is a Cromology brand. Its shades are shown for reference and to
direct users to the manufacturer; ColorScan Pro is not affiliated with it.

What’s new

New with ColorScan Pro: the Aurora theme and the Globe home, a living globe that measures in one tap. Your theme is now remembered. Performance improvements.