What is Color Contrast Checker?
The Color Contrast Checker is an interactive, free, and ad-free online tool designed to assess color contrast for digital accessibility. It adheres to the contrast criteria set by the Web Content Accessibility Guidelines (WCAG) at AA and AAA levels, helping designers ensure optimal readability through sufficient contrast and appropriate font sizes.
This tool calculates contrast ratios and visualizes them with colors and fonts, making it easy to determine suitable color combinations. It supports various color formats including HEX, RGB, and HSL, and provides a visual representation of selected color combinations along with compliance verification for normal and large text according to WCAG standards.
Features
- Contrast Ratio Calculation: Automatically calculates contrast ratios between foreground and background colors
- WCAG Compliance Verification: Checks compliance with WCAG AA and AAA accessibility standards for normal and large text
- Multiple Color Format Support: Accepts color inputs in HEX, RGB, and HSL formats
- Visual Preview: Provides visual representation of selected color combinations with sample text
- Accessibility Guidelines: Includes information about WCAG requirements and accessibility best practices
Use Cases
- Checking color contrast for website design compliance
- Verifying accessibility standards for digital interfaces
- Testing color combinations for optimal readability
- Ensuring WCAG compliance for user interface elements
- Evaluating text visibility for users with visual impairments
FAQs
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What color formats does the tool support?
The tool supports HEX, RGB, and HSL color formats for both foreground and background color inputs. -
Does the tool check compliance with specific WCAG levels?
Yes, the tool verifies compliance with both WCAG AA and AAA standards for normal and large text. -
Is there a visual preview of color combinations?
Yes, the tool provides a visual representation of selected color combinations with sample text in different sizes. -
What text sizes does the tool evaluate for contrast?
The tool evaluates normal text (14pt), large text (18pt), and bold text (14pt bold) for contrast compliance.
