| Level | AA (Normal) | AA (Large) | AAA (Normal) | AAA (Large) |
|---|---|---|---|---|
| Pass | PASS | PASS | PASS | PASS |
Why Check Color Contrast?
Color contrast is a fundamental aspect of web accessibility. If the text on your website does not stand out sufficiently against its background, users with visual impairments or color blindness may find it impossible to read. Our Contrast Ratio Checker is an essential free tool for developers and designers aiming to create inclusive digital experiences.
The Web Content Accessibility Guidelines (WCAG) provide specific standards for contrast ratios. For normal text, a ratio of at least 4.5:1 is required for Level AA compliance. For large text (18pt or 14pt bold), the requirement drops to 3:1. This tool instantly calculates these values, allowing you to fine-tune your color palette during the design phase rather than fixing issues later in development.
Beyond accessibility, high contrast improves readability for all users, especially on mobile devices in sunlight or low-quality screens. By using this No Tools Left Behind (NTLB) utility, you ensure your content is legible, professional, and compliant with modern legal standards for accessibility.
Frequently Asked Questions
What is a good contrast ratio?
A ratio of 4.5:1 is the minimum standard for normal body text under WCAG AA guidelines. A ratio of 7:1 is required for AAA compliance, which provides even better readability.
Does this tool work for images?
This tool calculates solid color contrast. For text over images, you must ensure there is sufficient contrast between the text and the specific part of the image it overlays, often requiring a shadow or overlay.
Is there a mobile version of this tool?
Yes, this tool is fully responsive and works perfectly on mobile phones and tablets, allowing you to check colors on the go.