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Template:Ensure AAA contrast ratio

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Warning This template is used on approximately 15,000 pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them.
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This template checks for compliance with WCAG G17, i.e. that a background–foreground colour combination has got a contrast ratio of more than 7:1. It takes two arguments, the base colour value, and the tracking category, category, to place non-compliant transclusions in. A third parameter, other, is optional; the template will by default calculate the contrast ratio against black and white, on the assumption that it is used in conjunction with {{Greater color contrast ratio }}.

Examples

  • {{Ensure AAA contrast ratio|base=navy|category=Test}} →
  • {{Ensure AAA contrast ratio|other=|base=navy|category=Test}} →
  • {{Ensure AAA contrast ratio|other=navy|base=navy|category=Test}} → Test
  • {{Ensure AAA contrast ratio|base=red|category=Test}} → Test
  • {{Ensure AAA contrast ratio|base=#CC5500|category=Test}} → Test
  • {{Ensure AAA contrast ratio|base=asdf|category=Test}} → Test

Templates implementing Ensure AAA contrast ratio

Templates and the associated tracking categories, as of July 2024[update] :

See also

The above documentation is transcluded from Template:Ensure AAA contrast ratio/doc. (edit | history)
Editors can experiment in this template's sandbox (edit | diff) and testcases (create) pages.
Add categories to the /doc subpage. Subpages of this template.

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