Accessibility
Built to be read by everyone.
Tools you control should work for everyone who uses them. This page sets the bar we hold the site to, shows what works today and what is still in progress, and tells you how to report anything that gets in your way.
the target
One standard, both themes.
We hold the whole site to The Web Content Accessibility Guidelines, version 2.2: the widely adopted standard for how usable a page is to people with disabilities. Level AA is the one most organizations and laws hold to. at level AA, in the light theme and the dark one. Neither theme is the lesser version. Text clears the same contrast floor in each, and we test as we build.
Fig. I / the same leaf in both lights; the AA contrast floor (4.5:1) is the rule each must clear.
in place
What works today.
Five things are built and holding right now. Each one below is lettered to a part of the figure, so you can see what it covers. A VALIDATED mark means you can measure the claim and check it yourself.
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KeyboardVALIDATED
Every link, button, menu and instrument works by Keyboard alone. Focus is always visible, and a skip-to-content link is the first stop on the page. Nothing here needs a mouse.
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ContrastVALIDATED
Body text and links meet the AA contrast ratio of at least 4.5:1 against the page, measured in both the light and dark themes. The figure above shows it: one floor, cleared in both.
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StructureVALIDATED
Real headings, landmarks and lists, so a screen reader can move through a page by its shape. What you hear matches what is on the page.
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MotionVALIDATED
If your system is set to reduce motion, animated backgrounds and reveals jump straight to their finished, still state. The motion is decorative, so a still page loses nothing.
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FormsVALIDATED
The email field has a real label, and its status messages are announced to assistive technology as they change, so you always know whether your submission landed.
still cutting
What is still in progress.
Naming the gaps next to the wins is the whole point. Here are ours.
A few pages carry interactive instruments, like the similarity gauge and the timeline. We are still improving how they read to a screen reader, and some may not yet announce every state change out loud. The decorative backgrounds behind them hold no information and are safe to ignore.
If an instrument blocks you from a page, that is on us. Tell us, and we will give you the same information in plain text.
redress
Found a barrier? That is a bug.
We do not file accessibility problems away for someday. They go in the same queue as any broken page, and they get fixed the same way.
Write to us with the page you were on and what got in your way. The more specific you are, including the page, the control, and the assistive tool you use, the faster we can fix it.
[email protected] the page · what blocked you · we fix it like a bug