https://stockhub.co/index.php?action=history&feed=atom&title=Module%3AColor_contrast%2Fdoc 2026-04-17T15:42:55Z Revision history for this page on the wiki MediaWiki 1.43.5 https://stockhub.co/index.php?title=Module:Color_contrast/doc&diff=135720&oldid=prev 2022-02-13T16:08:49Z

<p>a note about the formulas, semantics</p> <p><b>New page</b></p><div>&lt;!-- Categories go at the bottom of this page and interwikis go in Wikidata. --&gt;<br /> {{module rating|protected}}<br /> {{High-use|325916}}<br /> {{Lua|Module:Color&amp;nbsp;contrast/colors}}<br /> <br /> This module is used primarily by <br /> * {{tl|Color contrast ratio}}<br /> * {{tl|ColorToLum}} / {{tl|RGBColorToLum}}<br /> * {{tl|Color contrast conformance}}<br /> * {{tl|Ensure AAA contrast ratio}}<br /> * {{tl|Ensure AA contrast ratio}}<br /> * {{tl|Greater color contrast ratio}}<br /> It is also used for tracking within<br /> * [[Module:Navbox]]<br /> * [[Module:Userbox]]<br /> * [[Module:Episode list]]<br /> and for documentation in<br /> * [[Module:College color]]<br /> <br /> The formulas used are [https://www.w3.org/WAI/GL/wiki/Relative_luminance#Definition_as_Stated_in_WCAG_2.x stated in WCAG 2.x specifications]. [[WCAG]] is the main guideline for creating accessible interfaces on the web.<br /> <br /> == Usage ==<br /> To use this module, you may use one of the above listed templates or invoke the module directly<br /> <br /> * To compute relative luminescence: &lt;br&gt; &lt;code&gt;&lt;nowiki&gt;{{ColorToLum|color}}&lt;/nowiki&gt;&lt;/code&gt; or &lt;code&gt;&lt;nowiki&gt;{{#invoke:Color contrast|lum|color}}&lt;/nowiki&gt;&lt;/code&gt;<br /> * To compute a contrast ratio between two colors: &lt;br&gt; &lt;code&gt;&lt;nowiki&gt;{{Color contrast ratio|color1|color2|error=?}}&lt;/nowiki&gt;&lt;/code&gt; or &lt;code&gt;&lt;nowiki&gt;{{#invoke:Color contrast|ratio|color1|color2|error=?}}&lt;/nowiki&gt;&lt;/code&gt;<br /> * To determine which of two colors (color2a and color2b) has the greater contrast ratio with a particular color (color1): &lt;br&gt; &lt;code&gt;&lt;nowiki&gt;{{Greater color contrast ratio|color1|color2a|color2b}}&lt;/nowiki&gt;&lt;/code&gt; or &lt;code&gt;&lt;nowiki&gt;{{#invoke:Color contrast|greatercontrast|color1|color2a|color2b}}&lt;/nowiki&gt;&lt;/code&gt;<br /> * To compute the contrast ratio between the background and text colors specified in a css style string: &lt;br&gt; &lt;code&gt;&lt;nowiki&gt;{{#invoke:Color contrast|styleratio|css style statement string|default background color|default text color}}&lt;/nowiki&gt;&lt;/code&gt;<br /> <br /> &lt;includeonly&gt;{{sandbox other||<br /> [[Category:Modules handling colors]]<br /> }}&lt;/includeonly&gt;</div>

imported>Stjn