Guidelines for Developers

Detailed technical standards for implementing accessible code, ARIA labels, and robust keyboard navigation. Developers Checklists

Note: * The following documentation does not cover all of the WCAG AAA requirements. For full compliance, visit the links given in front of all four major principles: Perceivable, Operable, Understandable, Robust

Perceivable

In web accessibility, Perceivable means that information and user interface components must be presented to users in ways they can sense whether through sight, hearing, or touch—ensuring that content is accessible to individuals with sensory disabilities.

Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language.

Level AHighest

1.1.1 Non-text Content

All non-text content that is presented to the user has a text alternative that serves the equivalent purpose.

Image Alternative Text

All meaningful images that are presented to the user have equivalent, accessible descriptions.

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Decorative Images

All decorative images that are presented to the user do not have alternate text.

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Decorative Background

Requires that important information provided by background images is also included by other methods.

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Captcha Alternative

Requires that CAPTCHA provides formats for users without vision and users without hearing

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