# Accessibility

Learn about accessibility best practices for customizations.

To build a customization that everyone can use, it requires understanding and following specific accessibility standards. The guidelines on this page target the [Web Content Accessibility Guidelines (WCAG) 2.2 (Level AA)](https://www.w3.org/TR/WCAG22/) as the foundation for web and digital accessibility. In addition to these best practices, we recommend that you familiarize yourself with the [WCAG principles of accessibility](https://www.w3.org/WAI/WCAG22/Understanding/intro#understanding-the-four-principles-of-accessibility).

You are responsible for ongoing compliance with accessibility regulations in the countries where you operate.

## Design guidelines

- Use personas that include people with visual, hearing, motor, or cognitive disabilities.
- Ensure text has sufficient color contrast (at least 4.5:1 for normal text).
- Allow users to resize text up to 200% without loss of content or functionality.
- Make all features accessible through keyboard.
- Keep the interface structure predictable and easy to understand.

## Technical guidelines

- Use semantic HTML (`<button>`, `<nav>`, `<main>`, etc.).
- Ensure ARIA roles and properties are properly implemented.
- Support screen readers (test with NVDA, JAWS, or VoiceOver).
- Provide text alternatives for all non-text content (for example, images, videos).
- Avoid flashing or blinking elements that may trigger seizures.

## Content guidelines

- Use plain language and short sentences.
- Use descriptive links (for example, "Read about our services" instead of "Click here").
- Provide transcripts or captions for audio or video content.

## Related pages

- [Area overview page with navigation](/merchant-center-customizations.md)
- [Previous page: Custom Views](/merchant-center-customizations/custom-views.md)
- [Next page: Maintenance guidelines](/merchant-center-customizations/maintenance-guidelines.md)