Terms of Use

Last updated: 15 August 2026

Using this site

Pigomentry's tools and reference pages are provided free of charge, "as is," for personal and commercial use. You may use any output (converted colors, generated palettes, gradients, exported CSS or Tailwind snippets) in your own projects without attribution.

No warranty

Color conversions, contrast calculations, and the color-blindness simulation are based on standard published formulas, but we make no guarantee of pixel-perfect accuracy for every use case — particularly CMYK output, which is an unmanaged approximation and not a substitute for a real ICC-profiled print workflow. Verify anything safety-, compliance-, or production-critical independently.

Reference content

Statistics and thresholds cited on the reference pages are sourced and dated at the top or bottom of each page. We aim to keep these current but cannot guarantee that a source hasn't changed its figures since our last check.

Acceptable use

Don't attempt to disrupt, scrape abusively, or reverse-engineer this site's infrastructure. Automated use of the tools for legitimate purposes (e.g., a script calling the same math client-side) is fine — the underlying formulas are standard and documented on our Color Space Reference page.

Changes

We may update these terms as the site changes. Continued use after an update means you accept the revised terms.

Contact

Questions: see the Contact page.