Contrast Checker
AccessibilityProfessional accessibility validator focused on WCAG 2.1 contrast guidelines. Ensure your designs are readable by everyone.
Color Configuration
Elite Typographic Preview
The quick brown fox jumps over the lazy dog. Designers use this text to verify readability at a glance.
Contrast Ratio
⚠️ Poor Contrast
Accessibility Standards
The Web Content Accessibility Guidelines (WCAG) require a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Level AAA requires 7:1 for normal text. These standards ensure your content is readable by people with moderately low vision or color deficiencies.
Verified Tool QualityLive & Secure
This tool has been extensively tested for accuracy and performance. On April 2026, our engineers verified the core logic to ensure 100% reliability and precision. Like all CosmoxHub utilities, this tool runs entirely in your browser. No data is ever sent to a server.