Web accessibility

Definition and importance
Color contrastTEXE Optionif (Alt Text)Keyboard navigationAttributs ARIA
Verification tools

Web accessibility

Web accessibility aims to make websites usable by all, including people with disabilities.By respecting the principles of accessibility, we allow a better experience for all users.

What is web accessibility?

Definition :Web accessibility concerns all practices to make digital content accessible to all, including people with visual, hearing, physical, cognitive, or neurological limitations.

Importance :Accessibility is crucial to ensure digital inclusion, guarantee legal compliance (eg RGAA in France), and offer a fair user experience.

Color contrast

A good color contrast between the text and the background allows easy reading for people with visual disorders.

Use sufficiently contrasting colors (ex: dark text on a light background) to improve readability.

Text with high contrast (white on a dark background)

TEXE Optionif (Alt Text)

Alternative text, orAlt text, is used in image tags to describe visual content to those who use screen players.

<img src="image.jpg" alt="Description de l'image">

Keyboard navigation

Keyboard navigation allows users to navigate without mice, using tab, arrow keys, etc.Make sure that all interactive elements are accessible by the keyboard.

  • Make sure the links and buttons are focusable with the TAB key.
  • UsetabindexTo adjust the navigation order.

Attributs ARIA

ARIA attributes (Accessible Rich Internet Applications) improve accessibility by adding information to interactive elements.

  • aria-label: Provides a label to the elements that do not have visible text.
  • aria-hidden: Mask an element for screen players.
  • aria-live: Indicates whether a dynamic region should be announced by the screen player.

Accessibility verification tools

Use these tools to check the compliance of your site to accessibility standards:

  • Wave: Visual verification of the accessibility of a page.
  • AXE: Browser extension for accessibility audits.
  • Color Contrast Checker: Test the contrast of colors.