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Create a QR code for a link, Wi-Fi, WhatsApp, contact and more, or read one from a photo.
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Fill in the details to see your QR code.
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Colour-blind safe palette checker
Check whether people with colour blindness can tell your palette's colours apart.
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- No sign-up
- Works on any device
About Colour-blind safe palette checker
Paste your palette and see whether people with red-green or blue-yellow colour blindness can still tell the colours apart. About 8 percent of men have some colour vision deficiency. Charts that rely only on red versus green are the classic failure, so combine colour with labels or patterns.
How to use Colour-blind safe palette checker
- Enter your palette colours as HEX codes, one for each colour.
- Look at how each colour appears under the different types of colour blindness.
- Replace any pair that looks too similar and check again.
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.
- Free to embed on your own website, with a ready-made code to copy.
- Available in 10 languages.
Also known as
Frequently asked questions
Which colour combinations are bad for colour blindness?
Red with green, green with brown, and blue with purple are the usual problems. Vary lightness as well as hue, and add labels, icons or patterns.
What can I do if two colours look the same?
Change the lightness of one of them, since colour blind viewers rely on light versus dark differences. Adding patterns, labels or icons also helps.
Is this simulation exact?
No. It is an approximation of how common types of colour vision deficiency may look. Real perception varies between people, so also avoid using colour as the only signal.
Is Colour-blind safe palette checker free?
Yes. Colour-blind safe palette 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.
Can I put Colour-blind safe palette checker on my own website?
Yes. Use the Embed on your site button under the tool to copy a short piece of code and paste it into your page. It is free, needs no account, and the tool keeps working inside your page.