Nearly 95% of Websites Fail Accessibility Standards: How a Color Contrast Checker Can Help

Every year, the team at WebAIM analyzes the home pages of the top one million websites for accessibility issues. And every year, the results are rough. In their 2025 report, 94.8% of home pages had at least one detectable WCAG failure. Across all those pages, they found over 50 million distinct accessibility errors, averaging 51 errors per page.

That is a staggering amount of inaccessible content. But here is the encouraging part: the single most common error is something you can check and fix in minutes.

The Number One Error: Low Color Contrast

Low contrast text was found on 79.1% of the home pages analyzed in the WebAIM Million 2025 report. On average, each page had 29.6 instances of text that did not meet the minimum WCAG 2 AA contrast thresholds. That number is actually down 14.4% from the 34.5 instances per page found in 2024, so there is some progress. But 79.1% is still way too high.

What does low contrast actually look like? Think light gray text on a white background, or a medium blue on a slightly darker blue. It might look "clean" or "modern" in a design mockup, but for a real person trying to read it, especially someone with low vision, color blindness, or even just screen glare, it is a barrier.

The Other Top Accessibility Errors

According to WebAIM, the same six error types have topped the list for five consecutive years. After low contrast, the most common issues are missing alternative text for images, missing form input labels, empty links, missing document language, and empty buttons. These errors overlap significantly, meaning most sites have multiple issues compounding the problem.

Why Color Contrast Is the Best Place to Start

Of all the accessibility improvements you could make, fixing color contrast is arguably the easiest and has the widest impact. Here is why:

It is the most common problem. Fixing it addresses the issue affecting 4 out of 5 websites.

It is easy to test. You just need two hex color codes (your text color and background color) and a contrast checker tool. No coding knowledge required.

It is easy to fix. Often all it takes is darkening your text color or lightening your background by a few shades. Small tweaks, big impact.

It helps everyone. Better contrast improves readability for all users, not just those with disabilities. People reading on phones in bright sunlight, older adults with naturally declining vision, and anyone dealing with eye strain all benefit.

How to Use a Color Contrast Checker

Using a color contrast checker is straightforward. Head to a tool like our Accessibility Color Contrast Checker and enter your foreground (text) color and background color. The tool will instantly calculate the contrast ratio and tell you whether it passes WCAG AA (4.5:1 for normal text, 3:1 for large text) and AAA (7:1 for normal text, 4.5:1 for large text) standards.

If your colors do not pass, adjust them until they do. Many tools will suggest nearby colors that meet the requirements while staying close to your original palette. It is a simple process that can make a real difference.

The Business Case for Accessibility

Beyond doing the right thing, there is a solid business case for accessible design. With over 4,000 ADA digital accessibility lawsuits filed in 2024, according to UsableNet, and settlements that can run from $5,000 to millions of dollars, the legal risk is real. And accessibility overlays are not a reliable defense; over 1,000 lawsuits in 2024 specifically called out accessibility widgets as creating barriers.

On the positive side, accessible websites tend to have better SEO, lower bounce rates, and wider audience reach. When more than 1 in 4 U.S. adults have a disability according to the CDC, building an accessible site means you are serving more customers.

Small Steps, Big Impact

You do not have to fix everything at once. Start with color contrast because it is the most prevalent issue and the easiest to address. Run your site through a contrast checker, update the colors that fail, and you will have made your site more accessible than nearly 80% of the web. That is a pretty good start.

From there, tackle alt text, form labels, and link descriptions. Build accessibility into your design process so it happens automatically going forward, not as an afterthought.