Reaching WCAG Level AA works best as a sequence: set the target, scan the site, fix contrast, keyboard access and forms, cover the remaining basics, and keep testing. One in four adults has a disability that shapes how they use the internet, and these steps turn the guidelines into a site that works for all of them.
Step 1: Set WCAG 2.1 Level AA as the target
WCAG rests on four principles. Content has to be perceivable and operable, it has to be understandable, and it has to work across different technologies and assistive tools. Level AA is the practical goal for most business websites.
Step 2: Run an automated scan
Tools such as WAVE or axe flag technical issues fast. They catch only about 30% of problems, though, so treat the scan as a starting list rather than a verdict.
Step 3: Fix color contrast
Level AA asks for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. These ratios keep pages readable for people with low vision or color blindness, and many attractive designs miss them at first, so adjust colors while keeping the look intact.
Step 4: Make every function work from the keyboard
All functionality must be reachable without a mouse. Visitors should tab through links and form fields in a logical order, see a visible focus indicator, and never get stuck in a keyboard trap. Many people with motor disabilities depend on this, and power users benefit too.
Step 5: Repair your forms
Accessible forms give every field a visible label, group related fields, and add instructions where they help. Error messages should name the problem and suggest a fix, which cuts mistakes and abandonment for every user, not only those with disabilities.
Step 6: Cover the remaining basics
- Alt text for every meaningful image
- Text that can be resized without breaking the page
- Clear navigation that stays consistent from page to page
- Captions for video content
Step 7: Test with people, then repeat
Manual testing and screen reader testing find the problems that automated tools miss. Make accessibility checks a standard part of website maintenance so new pages meet the same bar.
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Frequently Asked Questions
What does WCAG mean, and who wrote it?
WCAG is short for Web Content Accessibility Guidelines, a shared standard from the World Wide Web Consortium (W3C). Version 2.1 is the widely adopted release, and it defines three conformance levels: A, AA and AAA.
Which level should the first step target?
Aim for WCAG 2.1 Level AA. Most legal requirements point to it, and it strikes a workable balance between access and effort. Level A is the floor, while Level AAA is the ideal but hard to reach in full.
Can these steps work on a site that is already live?
Yes. An accessibility audit pinpoints the specific problems, and most of them can be fixed with code changes, content updates and design tweaks, with no need for a full redesign.
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