Color Contrast Accessibility

Check a webpage for color contrast accessibility and issues with WCAG compliance

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Ensure your website is WCAG-compliant

The Color Contrast Accessibility Checker will check the colors on your website against the WCAG compliance. It will also provide you with recommendations on how you can offer users a more accessible online experience.

In the vast digital landscape, color choice is not just an aesthetic decision, it is a matter of accessibility. For people with visual impairments, correct color contrast is of utmost importance. The Web Content Accessibility Guidelines (WCAG), a set of guidelines to ensure websites are accessible to everyone, introduce two levels of contrast ratios depending on the level of success criteria: AA (minimum contrast) and AAA (enhanced contrast).

The WCAG AA level requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text.
The AAA level requires a contrast ratio of at least 7:1 for normal text and 4.5:1 for large text.

Use an online color contrast accessibility checker to evaluate and verify contrast ratios in your web designs! Find and fix content with poor color contrast!
  • Powerful and robust Color Contrast Accessibility Checker
  • Detailed and accurate results are ready for review in seconds
  • Free service that helps raise awareness of web accessibility
  • Designed to focus on full WCAG 2.0 compliance
  • No limits, no registration and installation of additional software

How to check color contrast for accessibility

  • In the drop-down menu, choose an HTML loading way. You can load a web page from a URL, a file from your local file system, or add code to check color contrast.
  • Click the „Check“ button to start the validation. The Color Contrast Accessibility Checker will scan your website or HTML document for accessibility errors and issues with WCAG compliance.
  • A report will appear describing the accessibility status of the checked webpage. In the report, you will see the total number of errors and warnings, a list of all deficiencies with their description, and code fragments in which the issue was found.
  • You can export the report to JSON, XML, or TXT file for additional analysis.

  • How to use the Color Contrast Accessibility Checker?To check if your site meets the necessary WCAG requirements, you need to add a web page URL or load HTML from a file. The tool scans the web page, checks the color contrast ratio of the web content, and tells you whether you meet the WCAG levels. In the report, you will see the total number of errors and warnings, a list of all deficiencies with their description, as well as code fragments in which a problem with colors and contrast was detected.
  • How to interpret color contrast ratios?Color contrast ratio is a numerical measure of the difference in perceived brightness or brightness between two colors. It is commonly used in web design and accessibility to ensure that text and other content are readable against their background. As per the Web Content Accessibility Guidelines, the minimum contrast ratio for normal text and image text at the AA level is 4,5:1. To achieve AAA compliance, the text must maintain a contrast ratio of 7:1. However, for larger text (18+ point or 14 points if bold), the ratios can be 3:1 for AA and 4,5:1 for AAA compliance.

  • Fast and Easy Color Contrast Checker

    Load HTML and click the „Check“ button to run the application. The tool examines WCAG compliance, producing a detailed report containing error counts, issue descriptions, and impacted code sections.

  • Check Color Contrast from Anywhere

    The Color Contrast Checker works from all platforms including Windows, Linux, Mac OS, Android, and iOS. All files are processed on our servers. No plugin or software installation required for you.

  • Color Contrast Accessibility Checker Quality

    When you run the Color Contrast Accessibility Checker it uses Aspose APIs, which are established well in the software industry and used by many Fortune 100 companies across 114 countries.
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