Accessibility guidelines are important for website design because they ensure usability and accessibility for all users, regardless of their disabilities. This can be done by following the World Wide Web Consortium (W3C) Web Content Accessibility Guidelines (WCAG) which outlines specific guidelines for website developers to build an accessible website, such as providing text alternatives for non-text content and providing ways for users to navigate to different areas of a website quickly. For example, developers should include descriptive text, alternative text, and captions for users with visual impairments to understand the content. By following these guidelines, we can build inclusive websites that are easier to use for everyone.
W3C Resources for you!
From here you can find resources from the W3C Web Accessibility Initiative (WAI). The resources are free on this WAI website.
5 Visual Treatments that Improve Accessibility