Color Contrast Checker

Advanced Color Contrast Master

Color Contrast Checker

HEX: #000000
RGB: rgb(0,0,0)
HSL: hsl(0,0%,0%)
HEX: #FFFFFF
RGB: rgb(255,255,255)
HSL: hsl(0,0%,100%)

Live Text Preview

Accessible Text Example
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Contrast Ratio

WCAG AA Normal Text

Fail (Min: 4.5:1)

WCAG AA Large Text

Fail (Min: 3:1)

WCAG AAA Normal Text

Fail (Min: 7:1)

WCAG AAA Large Text

Fail (Min: 4.5:1)

Accessibility Guidelines Summary

Enter colors and check contrast to see a summary of WCAG compliance here.

WCAG (Web Content Accessibility Guidelines) are developed by the W3C to provide a single shared standard for web content accessibility that meets the needs of individuals, organizations, and governments internationally.

Learn more about WCAG 2.1.

AI Color Palette Suggestions

Color Blindness Simulation

Why This Tool Stands Out:
✅ Real-Time WCAG Analysis

  • Automatically checks against AA/AAA standards for both normal and large text
  • Visual pass/fail indicators with minimum ratio requirements

🎨 Advanced Color Intelligence

  • AI suggests accessible alternatives when colors fail compliance
  • Monochromatic/complementary palette generation
  • One-click color inversion and adjustment

👁️ Inclusive Design Features

  • 4 types of color blindness simulation (Protanopia, Deuteranopia, etc.)
  • Interactive preview canvas showing text/element visibility

📋 Developer-Friendly Workflow

  • Copy color values in HEX/RGB/HSL with one click
  • Editable live text preview with real-time contrast updates
  • Full WCAG guidelines summary with official resources

💡 Pro Tip:
The "Get Suggestions" button leverages HSL color-space algorithms to generate WCAG-compliant alternatives while preserving your original color harmony - perfect for fixing accessibility issues without compromising brand colors.


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