Accessibility

We work towards the Web Content Accessibility Guidelines (WCAG) 2.1 at Level AA.

We are not going to claim full conformance. An honest statement is more useful than a badge: we have built to that standard deliberately, we test the things we can test, and the known gaps are listed further down this page.

Keyboard

• Every control, including the calculators, the search and the cookie settings, can be reached and operated with a keyboard.
• Focus is always visible, with a clear outline rather than a removed one.
• A Skip to content link is the first thing you reach on each page.
• The cookie preferences dialog traps focus while open and closes with Escape.

Screen readers

• Pages use real headings in order, real lists, real tables and real buttons, rather than styled div elements.
• Every form field has a label that is actually connected to it.
• Calculator results are inside live regions, so a change is announced rather than appearing silently.
• Validation messages are announced when they appear, and say what to do rather than only what is wrong.
• Decorative images and icons are hidden from screen readers; meaningful images have real descriptions.

Seeing the page

• Body text meets the AA contrast ratio against its background.
• The single accent colour used for links and actions is tested for contrast, and colour is never the only way information is conveyed.
• Text reflows down to a 320 pixel viewport without side-to-side scrolling. Wide tables scroll inside their own container rather than pushing the page sideways.
• The layout uses relative units, so browser zoom and larger default text sizes work.

Motion

• There is very little animation, and what exists is brief.
• prefers-reduced-motion is respected: if your system asks for reduced motion, transitions and animations are effectively switched off.

Being straight about what is not done:

• No audit by disabled users. Our testing is automated and manual, but the site has not been reviewed by people who use assistive technology daily. That is the most valuable test, and we have not done it.
• Colour swatches. The colour palette and temperature blanket tools are visual by nature. Colours are listed with names and hex codes as text, but the visual comparison itself is hard to convey non-visually.
• Complex tables. Some reference charts are wide. They scroll correctly, but a long chart is still tiring to work through with a screen reader.
• Third-party advertising. If you allow advertising, those ads come from Google and we do not control their accessibility.

A few things that may help:

• Results update as you type, and are announced. You do not need to press a button to calculate.
• Every calculator has a Reset control that restores the defaults.
• Results can be copied as text with the Copy control, which is often easier than reading a results panel.
• Each tool page includes the formula in plain words, so you can check a result by hand.

If something on this site stops you doing what you came to do, please tell us through the contact page.

It helps to know the page, what you were trying to do, and what happened instead. Knowing your browser and any assistive technology helps us reproduce it, but do not let missing details stop you reporting.

We treat accessibility reports the same way as calculator errors: as defects to fix, not requests to consider. Our corrections policy explains how that works.