ColrShiftTerms of Service
Last updated: October 2026
These terms govern your use of colrshift.com (the "Site"). By using the Site you accept them. If you do not, please do not use the Site.
ColrShift does one thing — as a color converter and contrast checker it converts colors between HEX, RGB, HSL and CMYK, checks WCAG AA and AAA contrast against black and white, and generates five harmony palettes. It converts every format through a common RGB representation, then computes the relative luminance of the two colors to get the WCAG contrast ratio you can compare against the 4.5:1 and 3:1 thresholds. What follows concerns only that tool and the inputs involved in it.
Everything the tool works with — the color values you type — is handled locally. It is usually reached for things like building a palette that stays legible, and because nothing is transmitted a visitor can close the tab knowing no copy was made anywhere.
What the Site is
ColrShift offers a color converter and contrast checker, free to use, together with supporting explanations. Every result is an estimate computed from what you supply, following the method set out on the page itself. Developer tools produce output for use in your own work, and you remain responsible for reviewing and testing it.
No professional relationship
No professional relationship arises from your use of the Site, and any decision you base on a result is your own responsibility.
How you may use the Site
You are free to use the Site for your own purposes, business included. Prohibited: attacking or overloading it, scraping at a rate that harms service, misrepresenting it as yours, and any illegal use.
Who owns what here
Unless credited otherwise, the Site's design, writing and code are ours or used under license. Linking to any page is welcome; copying large portions of the content needs our written consent.
Third-party content and advertising
Advertising, served by outside networks, funds the Site, and some pages reference external resources. We do not control that material and are not answerable for it, and no advert influences a result.
Service availability
The Site is provided "as is". We may change, suspend or remove any tool or page at any time and do not guarantee uninterrupted availability.
Liability
As far as legally permitted, our liability is excluded for indirect or consequential damages and for any decision taken on the strength of a result produced here.
Governing law
These terms are subject to the laws of the Site operator's jurisdiction, and conflict-of-law provisions do not override that.
Using generated output
Treat output as a starting point rather than a finished artefact. Review, adapt and test it yourself; responsibility for anything that ships rests with you, not with the tool.
Errors and completeness
Correctness is a goal, not a warranty: results may contain errors and the content may lag changes in the field. Where the underlying method has a margin of error, read the output accordingly.
Questions about these terms
Questions about these terms can be sent through the contact page.