Accessibility

The practice of designing and building sites so that people with disabilities can perceive, understand and operate them. Done well, it also improves usability for everyone, including keyboard and mobile users.

Why it matters

An interface that excludes people is broken, full stop. Accessibility helps make sure everyone can perceive, understand and use a page, regardless of ability or device. It is the right thing to do and it quietly improves the experience for every user, not just some.

In practice

In practice we build Accessibility in from the start, because retrofitting it is slow and expensive. We test with a keyboard and a screen reader, check it against recognised standards, and treat any barrier as a real bug rather than a nice-to-have.

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Related terms

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Accessibility
WCAG
The Web Content Accessibility Guidelines are the international standard for making web content accessible, organised into levels A, AA and AAA. Most projects aim for AA as a practical baseline.
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Accessibility
Semantic HTML
Using HTML elements according to their meaning, such as headings, lists and buttons, rather than generic containers. It gives assistive technology and search engines reliable structure to work with.
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Accessibility
Contrast Ratio
A measure of the difference in luminance between text and its background. Meeting minimum contrast ratios keeps text readable for low-vision users and in bright conditions.
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Accessibility

Why it matters

In practice

Keep reading.

WCAG

Semantic HTML

Contrast Ratio

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