Toolipedia- Free
- No sign-up
- Works on any device
No tool matches your search.
- Free
- No sign-up
- Works on any device
Create a QR code for a link, Wi-Fi, WhatsApp, contact and more, or read one from a photo.
- Free
- No sign-up
- Works on any device
Fill in the details to see your QR code.
PNG for phones, chats and websites. SVG and PDF stay sharp at any size, which is best for printing. Tip: point your phone camera at the preview to test it.
3. Style (optional): colors, dots, logo
Choose a photo or screenshot or drag it here
Works with photos of printed codes, screenshots and image files.
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Color contrast checker
Check text and background colors against WCAG AA/AAA, and get the nearest colors that pass.
- Free
- No sign-up
- Works on any device
About Color contrast checker
Test a text and background pair against WCAG contrast ratios. Normal text needs at least 4.5:1 for AA and 7:1 for AAA, large text needs 3:1 for AA. If your pair fails, the tool suggests the closest colors that pass, so you keep the look but gain readability.
How to use Color contrast checker
- Set the options above. The result updates live.
- Change anything until it's just right.
- Copy the result or download it.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Available in 10 languages.
Also known as
Frequently asked questions
What contrast ratio does WCAG AA need?
4.5 to 1 for normal text and 3 to 1 for large text, meaning 18 point or 14 point bold and bigger.
Is Color contrast checker free?
Yes. Color contrast checker on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.