How to use Color Converter & Contrast
- Type the text or URL you want to turn into a QR code.
- Reorder or adjust the settings, then hit the big button.
- When it's ready, click "Save." Your files never leave your device.
FAQ
Which formats can I enter?
Any CSS color: #ffffff, rgb(), hsl(), oklch(), named colors and more.
Is CMYK print-ready?
It is an estimate from screen colors. Print colors depend on the printer’s settings.
Is it safe to use Color Converter & Contrast with my files?
Yes. Your files are never uploaded — they're processed only inside your browser. Every page is served with a policy that blocks outgoing connections (Content-Security-Policy connect-src 'none'), and the counter in the bottom-left shows the data sent: 0 bytes.
Is it free? Do I need an account?
It's completely free, no account needed, and there are no usage limits.
Does it work on my phone?
Yes. It works in mobile browsers on iPhone and Android. For very large files, a computer will be faster.