Deck Contrast Auditor
Check a presentation's background and accent palette before it reaches the projector. See every background ratio, adjacent-colour risk, and a repaired alternative.
No account. Nothing stored. WCAG colour arithmetic only — no AI model call.
Add the deck palette
Use 2–10 colours in the order they commonly appear together on slides.
Apply accessible colour rules across the deck
The audit stays free. Gixo Lumen applies saved themes, layouts, and brand controls across editable presentations.
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