Perceivable
Color contrast
WCAG 1.4.3 Contrast (Minimum) · AA
- Decision queue
- human decides, machine applies
- Attestation
- human sign-off, listed on the certificate
What the rule requires
Text must stand out from its background by a measured ratio — 4.5:1 for body text — so readers with low vision can actually read it. Measured, not eyeballed.
How Proof clears it
- Measures the real rendered contrast of every piece of text in the document.
- Compresses the problem: hundreds of failing text runs usually trace back to two or three template colors, so Proof groups them into a handful of high-leverage decisions — one document-wide swap first, then per-area, then per-line.
- Suggests compliant replacements; your reviewer accepts or adjusts each decision, then Proof applies everything in one pass and re-measures to confirm.
- Filters false alarms: template text hidden behind full-bleed cover artwork is detected and auto-dismissed.
Watch it in Proof
What to expect
Text over photos gets a solid backing band instead of a recolor — a visible design choice, so it’s always yours to approve. A few print-production color setups are routed to source-level fixing rather than risked, and when a background is already at its limit Proof tells you the honest fix is darkening the text.
proof.ockem.com
Contrast decision queue
decision 16 of 22
PATH TO PASSING · 22 DECISIONS RESOLVE 97 FLAGGED RUNS
6.9:1
pass · dismissed
occlusion guard auto-dismisses text hidden behind cover artwork
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