Hello everyone!

In this post, I’ll introduce the Web Content Accessibility Guidelines (WCAG) — the foundation of modern, inclusive web design.

These guidelines help developers build websites that are usable by everyone, including users with visual, auditory, or physical impairments. Accessibility isn’t just a technical requirement — it’s a human-centered design principle.

The Four Core Principles

Perceivable: Content must be perceivable to all. Use alt text for images and subtitles for videos.

Operable: Ensure users can navigate with a keyboard or assistive devices, not only a mouse.

Understandable: Keep your design clear, predictable, and easy to follow.

Robust: Your website should work well with assistive technologies like screen readers — a true mark of quality.

Three Accessibility Levels

Level A: Minimum accessibility compliance.

Level AA: Recommended standard. Complies with ADA and EU laws, includes color contrast (4.5:1) and scalable text.

Level AAA: The highest level. Adds sign language support, strong contrast (7:1), and detailed error assistance for all users.

Conclusion

Accessibility benefits everyone — it improves SEO, user experience, and brand reputation. Just like we care about mobile-friendly design, we must also ensure accessibility to reach broader audiences and create a fairer digital space.