Availability

Here you will find a set of guidelines that provide standards for making web content and print more accessible to people with disabilities.

Availability (WCAG 2.1)

Simplified contrast matrix

Here is a simplified matrix of which color combinations should be used for text to meet the accessibility requirements of WCAG 2.1. The color of the letters in the matrix indicates which colors pass the contrast requirements against the background color the letters are placed on.

What is WCAG 2.1

WCAG 2.1 (Web Content Accessibility Guidelines 2.1) is a set of guidelines that provide standards for making web content more accessible to people with disabilities. This also applies to printed matter.

  • The color combinations are not recommendations, they are requirements that must be followed.
  • The accessibility requirements do not include logos and decorative graphics that are not information carriers.
  • For information-bearing graphics (e.g. diagrams) you must keep in mind that even a person with a functional impairment must be able to read the graphics. This means that the default is always that a chart should be readable as having no colors at all and that all data must be explained and reported in the chart. See examples below.

Enhanced contrast matrix