Web Accessibility: Why It Matters and Where to Start

Web accessibility means building your site so everyone can use it, including people with visual, hearing, motor, or cognitive differences. It is the right thing to do, it widens your audience, and it lowers legal risk. The basics of web accessibility are straightforward and improve the experience for all users. This guide shows where to start.

Why does web accessibility matter?

Web accessibility matters because a large share of people live with some form of disability, and many more benefit from accessible design situationally, like anyone using a phone in bright sun. When you ignore accessibility, you quietly turn away customers and expose your business to complaints and legal claims. When you embrace it, you reach more people and build a better site for everyone.

The legal risk is concrete in the US. The Department of Justice’s web accessibility guidance says the ADA applies to what businesses open to the public offer online. It leaves businesses flexibility in how they comply and points to WCAG, the standard below, as helpful guidance.

Which web accessibility standards should you follow?

Follow the Web Content Accessibility Guidelines (WCAG), maintained by the W3C Web Accessibility Initiative. These guidelines group requirements into clear principles: content should be perceivable, operable, understandable, and robust. You do not need to memorize them, but knowing they exist gives you a checklist to work toward.

Each requirement has a level. A is the minimum, AA is the realistic target for a business site, and AAA is the strictest. Laws and policies that name a standard usually point to level AA. The current version is WCAG 2.2, published in 2023.

Where should you start with web accessibility?

A handful of changes cover most of the early wins:

• Add alt text to images so screen readers can describe them. Say what the image shows or does; give purely decorative images an empty alt attribute so screen readers skip them.
• Use enough color contrast so text is readable for everyone. Level AA asks for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text, as our guide to color and contrast explains.
• Make the site keyboard-friendly so people who cannot use a mouse can still reach every link and button, with a visible outline showing where they are.
• Label forms clearly so every field is understandable, with labels that stay visible while someone types and error messages that explain the fix.
• Use proper headings so the page structure is logical. Choose heading levels for structure, not for size.
• Caption your videos so people who can’t hear the audio still get the message.

These steps deliver most of the benefit for a fraction of the effort of a full overhaul.

How do you test a site for web accessibility?

Run a free automated checker first, then test by hand, because automated tools catch only part of the problems. WAVE and the Lighthouse report built into Chrome both flag issues such as missing alt text and low contrast. Then do three manual checks:

1. Put the mouse away and use Tab, Shift+Tab, and Enter to complete your main journey, such as sending the contact form.
2. Zoom the browser to 200 percent and look for text that overlaps or gets cut off.
3. Turn on the screen reader your device already has (VoiceOver on a Mac or iPhone, Narrator on Windows) and listen to one key page all the way through.

Should you build accessibility in or fix it later?

Build it in: accessibility is far cheaper when designed in from the start than retrofitted later. If you are planning a new site or a rebuild, raise accessibility at the beginning, so contrast and focus styles are settled in the design and forms are built correctly the first time. If you have an existing site, start with the quick wins above and improve from there.

Be wary of overlay widgets that promise instant compliance with one line of code. They sit on top of the page and can’t repair missing labels or broken keyboard access in the code underneath.

Frequently asked questions

Is accessibility a legal requirement?

In many regions, accessibility expectations apply to business websites, and claims are rising. Beyond the ADA in the US, the European Accessibility Act covers e-commerce in the EU. Treat it as a real risk.

Does accessibility hurt design?

No. Accessible design is usually cleaner and clearer, which benefits all visitors. Contrast and focus styles are design choices like any other, and they can be fully on-brand.

How much does web accessibility cost?

It depends on how the site was built. Building accessibility into a new site adds little, while retrofitting an old one can mean reworking templates and components. The quick wins above cost mostly time.

Does it help SEO?

Often, yes. Many accessibility practices, like clear structure and alt text, also help search engines. Proper headings and descriptive link text make a page easier for screen readers and search engines alike to understand.

Make your site work for everyone

Web accessibility protects your customers and your business, and it is easier with experienced help. Start today with the keyboard test on your contact form: if you can’t complete it without a mouse, neither can some of your customers. Our design team builds accessible sites and can audit your current one for the gaps that matter most.