Accessibility guidelines

Vanilla Framework aims for Level AA conformance with the
Web Content Accessibility Guidelines (WCAG) 2.1


Ensuring conformance

We use the following tools to continually audit the framework:

Accessibility report tool

A checklist that can be filtered by A / AA / AAA level, with a short description and links to the related "Understanding" and "How to Meet" articles that accompany each criterion.

WAI-ARIA Authoring Practices 1.1

WAI-ARIA A guide for understanding how to use WAI-ARIA 1.1 to create an accessible Rich Internet Application. It provides guidance on the appropriate application of WAI-ARIA, describes recommended WAI-ARIA usage patterns, and explains concepts behind them.

The W3 Markup Validation Service


Curated criteria checklist

The scope of the WCAG spec can be overwhelming. We find the following checklist a good starting point if you're new to accessibility:

*Adapted from Accessibility Guidelines checklist and Web Accessibility Checklist


Key WCAG documents

The volume of information on the WCAG 2.0 website can be disorienting.
We keep the following links handy for quick reference:


Useful tools

The web is abundant in tools that help to create and test for accessible sites. We find the following particularly useful:


Noticed an issue?

If you spot an accessibility problem in Vanilla, let us know
by filing an issue on GitHub.