Check contrast, preview accessible colors, and export your palette. WCAG 2 contrast thresholds are shown as a practical check, not a complete accessibility audit. Readable text helps people understand your content across screens, lighting conditions, and visual needs.RO Color Contrast & Accessibility Checker
Color settings
Contrast results
Live preview
#1F2937 / #FFFFFFMake every word count.
Accessible palette
RES OPERA TOOLS
Contrast ratio12.63:1
Normal text · AA 4.5:1Pass
Large text · AA 3:1Pass
Normal text · AAA 7:1Pass
Large text · AAA 4.5:1Pass
UI components · 3:1Pass
ACCESSIBLE DESIGN PREVIEW
Small text sample · 14px
Save color pairs to build a reusable palette.