Template:Ensure AAA contrast ratio/doc

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  colour value, and the tracking category, , to place non-compliant transclusions in. A third parameter,, 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.

Templates implementing Ensure AAA contrast ratio
Templates and the associated tracking categories, :
 * Australian television episode ratings
 * Background color
 * Infobox athletics race
 * Infobox television season
 * Infobox train
 * Infobox television season
 * Infobox train
 * Infobox train
 * Infobox train