Tools / Accessibility

ux_contrast_check

FREE

Instantly check if your color combinations meet WCAG accessibility standards. Get contrast ratios and AA/AAA compliance status for any foreground/background pair.

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Capabilities

Contrast Ratio Calculation

Calculate precise contrast ratios between foreground and background colors.

WCAG AA Compliance

Check if colors pass WCAG AA standards (4.5:1 normal, 3:1 large text).

WCAG AAA Compliance

Verify enhanced compliance (7:1 normal, 4.5:1 large text).

Multiple Formats

Accepts hex colors (#fff, #ffffff) or rgb() format.

API Demo

ux_contrast_check

// Request

{"name": "ux_contrast_check", "arguments": {

"foreground": "#ffffff",

"background": "#10b981"

}}

// Response

{

"foreground": "#ffffff",

"background": "#10b981",

"ratio": 3.94,

"ratio_string": "3.94:1",

"aa_normal": false,

"aa_large": true,

"aaa_normal": false,

"aaa_large": false

}

Cost: FREE • No API key required

Use Cases

Design System Validation

Check all color token combinations in your design system for accessibility compliance.

CI/CD Integration

Automate contrast checks in your build pipeline to catch accessibility regressions.

Theme Development

Ensure dark mode and light mode themes both meet accessibility standards.

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Check color accessibility for free

Verify WCAG compliance instantly. No API key required, unlimited usage.

Get Started