Color convert

Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".

Input

Field	Type	Description
color *	string	Color in hex, rgb(), or hsl() form

Example output

{
  "hex": "#4ade80",
  "rgb": [
    74,
    222,
    128
  ],
  "hsl": [
    142,
    69,
    58
  ],
  "luminance": 0.58
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/color \
  -H "Content-Type: application/json" \
  -d '{"color":"#4ade80"}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/color", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "color": "#4ade80"
  }),
});

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