RPDI
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Color Contrast Checker

Check WCAG 2.1 AA/AAA compliance for any color combination. Live text preview and accessibility grade report.

🎨 Color Selection

Foreground (Text)

Background

👁️ Live Preview

Heading Text Sample

This is body text at normal size. It should be easy to read against the background color.

Smaller text is harder to read with low contrast. WCAG requires a minimum 4.5:1 ratio for normal text.

Aa

Display

Aa

Heading

Aa

Body

Contrast Ratio

4.86:1

AA

📋 WCAG Compliance

AA Normal Text
min 4.5:1PASS
AA Large Text
min 3:1PASS
AAA Normal Text
min 7:1FAIL
AAA Large Text
min 4.5:1PASS
WCAG 2.1 UI Components
min 3:1PASS

Results

Foreground: #FFFFFF
Background: #6c5ce7
Contrast Ratio: 4.86:1
WCAG Grade: AA

✅ AA Normal Text (4.5:1) — PASS
✅ AA Large Text (3:1) — PASS
❌ AAA Normal Text (7:1) — FAIL
✅ AAA Large Text (4.5:1) — PASS
✅ WCAG 2.1 UI Components (3:1) — PASS

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Frequently Asked Questions

What is WCAG and why does color contrast matter?

WCAG (Web Content Accessibility Guidelines) is the global standard for web accessibility. Color contrast matters because ~8% of males and ~0.5% of females have color vision deficiency. Low contrast text is also harder to read in bright sunlight, on older monitors, and for anyone over 40.

What contrast ratios do I need for WCAG compliance?

WCAG AA requires 4.5:1 for normal text and 3:1 for large text (18px+ or 14px+ bold). WCAG AAA requires 7:1 for normal text and 4.5:1 for large text.