# Color Accessibility Checker Check color contrast ratios for WCAG compliance > Canonical page: https://elysiatools.com/en/tools/color-accessibility-checker - **Category:** Design - **Keywords:** color, accessibility, contrast, wcag, a11y, check ## Overview The Color Accessibility Checker is a professional utility designed to verify if your chosen foreground and background color combinations meet WCAG contrast ratio standards, ensuring your digital content is readable for all users. ## Inputs - **Foreground Color** (color): #333333 - **Background Color** (color): #ffffff ## When to use - During the UI design phase to validate color palettes for web or mobile applications. - When auditing existing websites to ensure text remains legible against background elements. - Before finalizing brand guidelines to confirm that color pairings comply with accessibility requirements. ## How it works - Enter the hex code for your foreground (text) color. - Enter the hex code for your background color. - Click the check button to calculate the contrast ratio and receive an immediate pass or fail status based on WCAG guidelines. ## Use cases - Validating button text colors against brand-colored backgrounds. - Ensuring body text readability on light or dark mode interfaces. - Checking accessibility of status labels and badges in dashboard designs. ## Frequently asked questions ### What is the minimum contrast ratio required by WCAG? For normal text, WCAG AA requires a contrast ratio of at least 4.5:1, while AAA requires 7:1. ### Does this tool support transparency or alpha channels? This tool currently supports standard solid hex color codes. ### Why is color contrast important for accessibility? Proper contrast ensures that users with low vision or color blindness can distinguish text from the background, preventing eye strain and improving readability. ### What does the result indicate? The result provides the calculated contrast ratio and indicates whether the combination meets AA or AAA compliance levels. ### Can I check multiple color pairs at once? This tool is designed to check one specific foreground and background pair at a time for precise validation. ## Related tools - [Accessible Color Palette Contrast Checker](https://elysiatools.com/en/tools/accessible-color-palette-contrast-checker): Audit every color pair in a palette against WCAG 2.1 AA and AAA contrast thresholds and suggest adjustments - [Color Contrast Checker](https://elysiatools.com/en/tools/color-contrast-checker): Check color contrast ratio and WCAG compliance for accessibility - [Color Space Converter](https://elysiatools.com/en/tools/color-space-converter): Convert a color between HEX, RGB, HSL, CIELAB, and Display-P3 with CSS-ready output and gamut checks. - [Color Vision Accessibility Checker](https://elysiatools.com/en/tools/color-vision-accessibility-checker): Measure WCAG contrast, simulate major color-vision deficiencies, and optionally flag low-contrast regions in a UI screenshot - [Accessibility Audit Report Generator](https://elysiatools.com/en/tools/accessibility-audit-report-generator): Audit HTML or a URL for common WCAG issues and export a structured PDF report grouped by severity - [Accessibility Checker](https://elysiatools.com/en/tools/accessibility-checker): Detect common WCAG 2.1 accessibility issues in HTML, fetched pages, or design images and return fix-ready guidance - [Adobe RGB to LAB Converter](https://elysiatools.com/en/tools/adobe-rgb-to-lab-converter): Convert Adobe RGB color values to LAB color space for color analysis with alpha channel support - [Tailwind Color Palette Sync](https://elysiatools.com/en/tools/tailwind-color-palette-sync): Generate theme.extend.colors for tailwind.config.ts from HEX colors, with WCAG contrast levels and optional dark mode. ## Samples - [Color Code Samples](https://elysiatools.com/en/samples/color-code): Collection of color codes in various formats (Hex, RGB, HSL, named colors) for validation testing - [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion - [Android Image Processing Kotlin Samples](https://elysiatools.com/en/samples/android-image-processing-kotlin): Android Kotlin image processing examples including reading/saving images, scaling, and format conversion - [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion ## Related content - [Accessible Color System Design Tools](https://elysiatools.com/en/hubs/color-design-tools): Build a reusable color system by transforming colors, generating harmonies, checking contrast and color vision, and documenting tokens. - [Pre-Publish Web Accessibility Audit](https://elysiatools.com/en/hubs/web-accessibility-audits): Review a page or UI component for structural, reading-order, screenshot-contrast, and color-vision risks, then turn automated findings into a human-reviewed release record.