Module:Color contrast/doc

This module is used primarily by It is also used for tracking within and for documentation in
 * Color contrast ratio
 * RGBColorToLum
 * Color contrast conformance
 * Ensure AAA contrast ratio
 * Ensure AA contrast ratio
 * Greater color contrast ratio
 * Module:Navbox
 * Module:Userbox
 * Module:Episode list
 * Module:College color

The formulas used are stated in WCAG 2.x specifications. WCAG is the main guideline for creating accessible interfaces on the web.

Usage
To use this module, you may use one of the above listed templates or invoke the module directly


 * To compute relative luminescence:  or
 * To compute a contrast ratio between two colors:  or
 * To determine which of two colors (color2a and color2b) has the greater contrast ratio with a particular color (color1):  or
 * To compute the contrast ratio between the background and text colors specified in a css style string: