QR Code Contrast Checker
Pick your colours and see whether the code will still scan — before it goes to print.
Scanners read luminance, not colour. Two shades that look clearly different to you can be nearly identical to a camera in poor light, which is why a code can look perfect on screen and fail on a menu at dusk. This checks the same things our editor checks, instantly and without an account.
Looks scannable
contrast 18.9:1Still test the printed piece at the distance people will stand.
Try a failure
What this cannot know
It reviews the design and nothing else. It cannot know your printer, your material, the light where the code will live, or the age of the cameras that will read it. A green verdict is a good start, not a substitute for scanning a printed proof.
Make the code itself
Five dynamic codes free, no card, and the same check runs live while you design.
Create a code