Contrast Aa

Check colour contrast ratios instantly. Validate your designs against WCAG 2.0 accessibility standards with real-time preview across AA and AAA levels.

Contrast Checker is the essential tool for designers and developers who care about accessibility. Whether you're building a brand new interface or auditing an existing design, this app helps you ensure every colour combination meets the highest accessibility standards.

KEY FEATURES

• Real-Time Contrast Ratio Calculation Enter any two colours and instantly see the contrast ratio. Results update in real time as you adjust your palette.

• WCAG AA & AAA Validation Check your colour pairs against both AA and AAA compliance levels for normal text, large text, and UI components.

• Smart Colour Suggestions When a colour combination falls short, get intelligent suggestions for accessible alternatives that stay close to your original palette.

• Hex, RGB & HSL Support Work with colours in whatever format suits your workflow. Switch seamlessly between Hex, RGB, and HSL inputs.

• Visual Preview See how your text and background combinations actually look with a live preview, so you can make informed design decisions at a glance.

• Share & Export Results Easily share contrast check results with your team or export them for documentation purposes.

BUILT FOR DESIGNERS

Contrast Checker was created with design professionals in mind. The clean, focused interface lets you work quickly without distractions. Whether you're a UI designer, front-end developer, or accessibility consultant, this tool fits naturally into your workflow.

WCAG 2.0 STANDARDS

The Web Content Accessibility Guidelines (WCAG) define minimum contrast ratios to ensure content is readable for people with visual impairments. Contrast Checker makes it effortless to verify compliance, helping you build inclusive digital experiences.