AI Usage Policy

No AI touches your colors

Nothing you type into Gamut Bench is sent to an AI model. Conversions, contrast ratios and shade scales are computed in your browser from published specifications, not generated by a model that might approximate them.

Why that matters

A converter is only useful if the same input always returns the same value. Our results are deterministic: paste the same color twice and you get identical output every time, on every device, offline. A generative model cannot promise that, which is why none is used here.

How the values are produced

• HEX, RGB and HSL conversion — CSS Color Module definitions.
• OKLCH and shade scales — Oklab, with gamut clipping marked where it happens.
• WCAG contrast — the WCAG 2.2 relative luminance formula.
• APCA contrast — the APCA-W3 reference implementation.
• CMYK — an uncalibrated conversion, marked as an approximation in the interface.

The conversion vectors are covered by an automated test suite that runs on every change. When a value cannot be represented exactly in the target space, the interface says so rather than silently rounding.

Support and operations

We may use ordinary software tooling to run and support the service. If that ever comes to include an AI-assisted step that touches your data, this page will be updated before it happens, and the change will be visible in the date above.

Reporting a wrong value

If a conversion looks wrong, send the input, the output you expected and the output you received through the support center. Color math bugs are treated as correctness bugs, not preferences.