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24K Labs Color Converter with WCAG Contrast
x402
24K Labs Color Converter with WCAG Contrast is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Converts a color between hex, RGB, HSL, HSV, and CMYK formats, and optionally computes the WCAG 2.1 contrast ratio and AA/AAA accessibility pass/fail against a second color.
Price / call$0.002
Success—
StatusUnknown
How this service works
Convert a color across hex/rgb/hsl/hsv/cmyk and (optionally) compute the WCAG contrast ratio and AA/AAA pass against a second color.
Output
Returns the input color expressed in the requested output format(s) (hex, RGB, HSL, HSV, CMYK). If a second color is provided, also returns the WCAG 2.1 contrast ratio (a numeric value like 4.52:1) and boolean AA and AAA pass/fail flags for both normal and large text sizes.
Example use cases
Design token format migration
“I have the color hsl(210, 100%, 56%) from our old design system and need it converted to both hex and CMYK for our print team — can you do that?”
Accessibility audit for UI components
“Does the text color #1A1A2E pass WCAG AA and AAA accessibility standards when placed on a background of #F5F5F5?”
Cross-format color reference sheet
“Convert rgb(58, 134, 255) into all formats — hex, HSL, HSV, and CMYK — so I can document it fully in our style guide.”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/v1/color-convertWhen to prefer
Choose this endpoint when you need to convert a color between multiple color spaces (hex, RGB, HSL, HSV, CMYK) in a single call, especially when you also want WCAG contrast accessibility checking bundled together. Prefer this over standalone WCAG-only endpoints when format conversion is also needed. Ideal for design systems, accessibility audits, and cross-platform color normalization workflows.
Side effects
- Invalid color value format returns a 400 error
- Unsupported color space or format name returns an error
- Missing required color input returns validation error
- Malformed hex (e.g. wrong length) causes parse failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| color | string | |
| against | string |
Output
Schema · Response
{
"type": "json",
"example": {
"hex": "#3366cc",
"rgb": [
51,
102,
204
]
}
}Tags
x402
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