Universal design and WCAG explained for ordinary businesses

"Universal design" and "WCAG" sound like terms for specialists. But the core is simple: your website should be usable by most people, including those who see poorly, can't use a mouse, or read slowly. Here's what that means in practice.

What universal design is about

Universal design means building things that as many people as possible can use, without needing a special solution. On the web, it means a website should work for people with different abilities — not just for someone who sees well, hears well and uses a mouse.

It's worth remembering this isn't a small group. Plenty of people navigate by keyboard, enlarge the text, use a screen reader, or are simply in bright sunlight on a phone. Good accessibility helps all of them at once.

What WCAG is

WCAG stands for the Web Content Accessibility Guidelines — international guidelines for how to make web content accessible. It's the list most rules and requirements refer to, in the UK and across Europe.

You don't need to read all of WCAG. But it helps to know the four principles it's built on. Content should be:

• Perceivable — what you show must be possible to see or hear in some way.
• Operable — everything should be usable, including without a mouse.
• Understandable — language and structure should make sense.
• Robust — it should work with different browsers and assistive tools.

The most common things to fix

You get surprisingly far with a few changes that cover what people struggle with most.

Good colour contrast. Light grey text on a white background looks elegant, but is hard for many to read. Make sure there's clear contrast between text and background.

Alt text on images. A short description of what the image shows, so that someone using a screen reader gets the content too. Images that are purely decorative can be left without.

Keyboard navigation. Many people don't use a mouse. Test that you can get through the whole page — menus, forms, buttons — using the Tab key alone.

Clear links and buttons. "Click here" means nothing out of context. "Read more about our opening hours" tells you where the link goes, including for a screen reader.

Forms with labels. Every field should have a visible label saying what to enter, not just grey text that vanishes when you start typing.

Why it pays off — commercially too

Accessibility isn't only a duty. It's also good business.

• More people can use the site. People you'd otherwise shut out become customers.
• It helps with search. Much of what makes a site accessible — tidy structure, good text — also helps Google understand it.
• It makes the site better for everyone. Clear contrast and plain language aren't just for a few; they improve the experience for every visitor.

How to get started

You don't have to do it all at once. A sensible order:

1. Check the colour contrast on text and buttons.
2. Add alt text to the images that matter.
3. Test that you can get through the page using only the keyboard.
4. Go over your link text and form labels.
5. Try a free accessibility tool to find the rest.

What we tend to tell businesses is that accessibility is rarely about rebuilding everything. It's about a few deliberate choices that make the site better for more people — and that most wish they'd made from the start.

Frequently asked questions

Do accessibility requirements apply to my small business?

In most places, accessibility requirements for websites apply to the majority of organisations serving the public, regardless of size. The scope can vary, but the principles are the same. If you're unsure what applies to you specifically, a quick check is worth it.

Do I need to hire a specialist to fix this?

Usually not for the basics. Contrast, alt text, keyboard navigation and clear text you can get a long way with yourself. For a thorough review of a larger site, help can be useful.

Are there tools that check accessibility automatically?

Yes, there are several free tools that scan the page and point out problems. They catch a lot, but not everything — a short manual test with the keyboard and a critical eye catches the rest.

This is general guidance, not a legal assessment of what applies to your organisation. If you need certainty about the requirements, check with the relevant authority.