# Avent Tech Color Converter

> Avent Tech Color Converter is a paid API for AI agents from api.aventtech.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Converts a hex or rgb() color value into hex, RGB, HSL, approximate relative luminance, and best text contrast color (black or white).

## Facts

- Endpoint: GET https://api.aventtech.com/convert/color
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/avent-tech-color-converter-1638b283
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bFre2nR6bHCgvoost1-Np

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability avent-tech-color-converter-1638b283
```

Example prompt: Convert the color #3A7BD5 and tell me its RGB, HSL, relative luminance, and whether I should use black or white text on top of it.

## When to prefer this

Use this endpoint when you need a quick, authoritative multi-format color conversion including accessibility-oriented outputs (relative luminance and black/white text contrast) in a single call, especially for UI/UX, design systems, or accessibility compliance workflows. Prefer it over manual computation or generic color libraries when you need a reliable API call without local dependencies.

## Known failure modes

- Missing or malformed 'color' query parameter returns an error
- Unsupported color format (e.g. named colors like 'red' or HSL input) may not be accepted
- Out-of-range RGB values (e.g. rgb(300,0,0)) may return an error
- Payment failure or insufficient USDC balance blocks the request

## How this service works

Color conversion: hex or rgb() input to hex, RGB, HSL, approximate relative luminance and best text contrast (black/white).

## Output

Returns the input color expressed in hex, RGB components, HSL (hue/saturation/lightness), an approximate WCAG relative luminance value, and a recommended text contrast color (either black or white) for optimal readability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "color"
     ],
     "properties": {
      "color": {
       "type": "string",
       "description": "Hex (#RGB/#RRGGBB) or rgb(r,g,b)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/avent-tech-color-converter-1638b283/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.aventtech.com](https://www.zero.xyz/host/api.aventtech.com/llms.txt)