Accessibility means software that people can use regardless of disability, device or circumstance. It is often treated as a late-stage compliance task. It works much better, and costs far less, as part of the design from the beginning.
Who benefits
Accessibility helps people with permanent disabilities, but also anyone with a temporary injury, a bright screen, a poor connection, or a busy day. Keyboard-friendly screens, clear contrast and plain language make software easier for everyone. Your own staff include people who will need these features at some point.
The four principles
The Web Content Accessibility Guidelines (WCAG) are organised around four ideas. Software should be:
- Perceivable: information can be seen or heard in some form (text alternatives, sufficient contrast).
- Operable: it can be used with a keyboard, with enough time, without causing harm.
- Understandable: clear language, predictable behaviour, helpful error messages.
- Robust: it works with assistive technology such as screen readers.
Quick wins
- Contrast. Text should stand out clearly from its background.
- Keyboard use. Everything possible with a mouse should be possible with the keyboard, with a visible focus indicator showing where you are.
- Labels. Every form field needs a clear label, not just placeholder text.
- Headings. Use real headings in a sensible order so screen readers can navigate.
- Alternative text. Meaningful images need descriptions.
- Error messages. Say what went wrong and how to fix it, in plain words.
- Do not rely on colour alone to convey meaning.
- Allow zoom. Layouts should work when text is enlarged.
Testing without specialist tools
- Keyboard only. Put the mouse aside and try to complete a task with Tab, Enter and the arrow keys.
- Zoom. Enlarge the page to 200% and see whether it still works.
- Screen reader. Try the built-in one on your computer or phone for a few minutes.
- Squint test. Blur your eyes. Can you still tell what is important?
Automated checkers catch some issues but not all, so combine them with human testing.
The legal context
Accessibility requirements are growing. Public sector bodies in Ireland already have web accessibility obligations, and the European Accessibility Act applies from 28 June 2025 to certain products and services, with some exemptions for very small businesses. Whether it applies to you depends on what you offer, so check the current rules or take advice rather than relying on a summary like this one.
Build it in early
Adding accessibility at the end means rework. Designing with it from the start, with sensible structure, good contrast, keyboard support and clear language, costs little and avoids the expensive retrofit.
Ask your developer
Do you design for keyboard use and screen readers? Do you test for contrast? Which standard do you aim for? Our own approach treats accessibility as part of every build, not an extra.
Planning something that needs to work for everyone? Talk to us.