Template:Ensure AAA contrast ratio/doc

This is a documentation subpage for Template:Ensure AAA contrast ratio.
It contains usage information, categories and other content that is not part of the original Template page.

This template is used on approximately 19,618 pages.

To avoid large-scale disruption and unnecessary server load, any changes to this template should first be tested in its /sandbox or /testcases subpages or in your own user subpage. The tested changes can then be added to this page in one single edit.

Please consider discussing any changes on the talk page before implementing them.

Uses Lua:

Module:Color contrast

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]:

Examples

Templates implementing Ensure AAA contrast ratio

See also