EasyFilesConverter

Colour contrast checker

Check the contrast ratio of text and background colours against WCAG 2.2 AA and AAA, with a live preview.

Free · No sign-up · Your files are processed on your device and never uploaded
How to use Colour contrast checker
  1. Fill in a few fields…
    1
    Paste or type
    Put your content in the box - or try the example.
  2. Result appears instantly
    2
    Watch the result
    Pick the options you want - the defaults suit most files.
  3. TXTCopy the result
    3
    Download the result
    Ready in seconds. Your file never left your device.
Features
  • Ratio from 1:1 to 21:1.
  • AA / AAA for normal and large text.
  • Live preview.
Free and private
Everything runs in your browser. Nothing you paste is uploaded, logged or stored.
Questions
What ratio do I need?
4.5:1 for normal text (AA), 3:1 for large text and icons.
Is it free?
Yes - free and unlimited, with no sign-up and no watermark.
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