# Services from color.agentutil.net on Zero

> color.agentutil.net serves 2 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/color.agentutil.net
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/color.agentutil.net/health.json

## Services

- [WCAG 2.1 Contrast Ratio Calculator](https://www.zero.xyz/c/color-agentutil-net-4ec2ac32/llms.txt): $0.001/call via x402. Calculates the WCAG 2.1 contrast ratio between a foreground and background color, and returns pass/fail results for AA and AAA accessibility standards at normal and large text sizes.
- [Color Format Converter](https://www.zero.xyz/c/color-agentutil-net-f0c1c690/llms.txt): $0.001/call via x402. Converts a color value between hex, RGB, HSL, CMYK, HWB, and CSS named color formats

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

- [Zero catalog index](https://www.zero.xyz/llms.txt)