WCAG 2.1 AA Standards

Serving content to diverse audiences

Double-A website conformance means a team has invested time and energy into upgrading their website. With affordances such as strong color contrast, video caption considerations, and robust integration with assistive technology, many organizations find double-a conformance to be a good balance between serving a wide range of users with a reasonable budget.

Double-A Overview

Media

• Captions are present on live video.
• When appropriate, there exists audio description of what’s happening on streaming media.

Markup

• The user must be able to resize text without breaking layout.
• No images of text containing any more than incidental content (so no text banners).
• The language is declared in the head of the document.

Design

• There exists a minimum contrast of 4.5:1 among elements. 
• Heading tags (h1, h2, h3, etc.) are present and emerge from content organically.
• When an intractable element is present it receives a focus state when tabbing to access.
• UI elements common on the site have a unifying design.

Forms

• If an error is present on a form, the website will: suggest ways to fix it, the user may withdraw and resubmit the form, or the form prompts a confirmation.

Navigation

• Pages can’t be nested or unintentionally obfuscated unless part of a step-by-step process, such as an application or feed result.
• Navigation follows a semantic structure and is repeated on pages.