Accessibility Statement

Our commitment

We aim to meet the Web Content Accessibility Guidelines (WCAG) 2.2 Level AA. Accessibility is part of our design, development, content, and testing work; it is not treated as a one-time certification.

What we support

• Keyboard navigation and visible keyboard focus.
• Semantic headings, labels, instructions, and result status.
• Text zoom, responsive reflow, and reduced-motion preferences.
• Colour contrast and information that does not rely on colour alone.
• Plain-language explanations for inputs, outputs, assumptions, and limitations.

Ongoing work and known limitations

The library is large and continues to grow. Some complex data tables, mathematical notation, interactive visual explanations, or legacy calculator controls may still need improvement. We review shared components first so a correction benefits many pages at once.

Meeting our target does not mean every combination of device, browser, assistive technology, and individual setting will behave identically. We investigate specific barriers and prioritise fixes by impact.