View source for Template:Ensure AAA contrast ratio/doc

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{{Lua|Module:Color contrast}}

This template checks for compliance with [http://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140916/G17 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 <code>base</code> colour value, and the tracking category, <code>category</code>, to place non-compliant transclusions in. A third parameter, <code>other</code>, 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 {{tl|Greater color contrast ratio}}.

== Examples ==
* {{#invoke:DemoTemplate|{{BASEPAGENAME}}|base=navy|category=Test}}
* {{#invoke:DemoTemplate|{{BASEPAGENAME}}|base=navy|other=|category=Test}}
* {{#invoke:DemoTemplate|{{BASEPAGENAME}}|base=navy|other=navy|category=Test}}
* {{#invoke:DemoTemplate|{{BASEPAGENAME}}|base=red|category=Test}}
* {{#invoke:DemoTemplate|{{BASEPAGENAME}}|base=#CC5500|category=Test}}
* {{#invoke:DemoTemplate|{{BASEPAGENAME}}|base=asdf|category=Test}}

== Templates implementing Ensure AAA contrast ratio ==
Templates and the associated tracking categories, {{as of|lc=yes|June 2019}}:
* {{tl|Australian television episode ratings}}
** {{clc|Articles using Template:Australian television episode ratings with invalid colour combination}}
* {{tl|Background color}}
** {{clc|Articles using Template:Background color with invalid colour combination}}
* {{tl|Infobox athletics race}}
** {{clc|Articles using Template:Infobox athletics race with invalid colour combination}}
* {{tl|Infobox character}}
* {{tl|Infobox fictional family}}
* {{tl|Infobox fictional race}}
* {{tl|Infobox fictional vehicle}}
** {{clc|Articles using infoboxes for fictional elements with invalid color combination}}
* {{tl|Infobox comic strip}}
** {{clc|Articles using Template:Infobox comic strip with invalid colour combination}}
* {{tl|Infobox music genre}}
** {{clc|Articles using Template:Infobox music genre with invalid colour combination}}
* {{tl|Infobox television season}}
** {{clc|Pages using infobox television season with invalid colour combination}}
* {{tl|Infobox train}}
** {{clc|Articles using Template:Infobox train with invalid colour combination}}

== See also ==
* {{tl|Ensure AA contrast ratio}}
* {{tl|Greater color contrast ratio}}
* {{section link|Template:Color contrast conformance|HTML colors}}
* {{section link|Wikipedia:Manual of Style/Accessibility|Color}}

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[[Category:Color conversion templates]]
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