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PennyRail CSS Color Converter
x402
PennyRail CSS Color Converter is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Converts a CSS color value between hex (#RRGGBB), RGB (rgb(r,g,b)), and HSL (hsl(h,s%,l%)) formats
Price / call$0.001
Success—
StatusUnknown
How this service works
Convert a CSS color between hex, RGB and HSL. Accepts #RRGGBB, rgb(r,g,b), hsl(h,s%,l%) or numeric RGB fields. Exact-match PennyRail gap-arbitrage route.
Output
The endpoint returns the input color converted into all three CSS color representations: hex (#RRGGBB), RGB (rgb(r,g,b)), and HSL (hsl(h,s%,l%)), allowing the caller to use whichever format is needed.
Example use cases
Hex to RGB for canvas rendering
“I have the hex color #3A86FF and I need its RGB values so I can use it in a JavaScript canvas drawing — can you convert it?”
HSL to hex for CSS stylesheet
“Convert hsl(210, 100%, 56%) to a hex code so I can drop it into my CSS file.”
RGB to HSL for design system audit
“What is the HSL equivalent of rgb(255, 99, 71)? I'm auditing our design tokens and need all colors in HSL.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/bazaar/color-convertWhen to prefer
Use this endpoint when you need a simple, programmatic CSS color format conversion between hex, RGB, and HSL without setting up a local parsing library. It is ideal for agents operating in web design, CSS generation, or design-token pipelines where colors arrive in one format and are needed in another. At $0.001 per call, it suits low-volume on-demand conversions rather than batch processing thousands of colors locally.
Side effects
- Invalid or unrecognized color string format returns an error response
- Out-of-range RGB values (e.g. negative or >255) cause a validation error
- Missing or malformed request body results in a 400-level error
- Malformed HSL percentages (e.g. missing % sign) may cause a parse failure
- Payment not included or insufficient USDC balance causes a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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