The short version: this site paints colors on a screen you already own. It has no way to learn anything about you and no interest in trying.
No account exists to create. Nothing you do is uploaded, because there is no application server — the site is static files. We run no advertising scripts, no fingerprinting, no social-media pixels, and we set no cookies of our own.
The color or temperature you pick can be written into the page's address (like ?c=ff0000) so that links are shareable — that lives in your address bar, under your control. The service worker caches the site's files in your browser so it opens offline; clearing site data in your browser removes every trace.
Our host (Cloudflare Pages) gives us aggregate request counts — how many visits a page received — without cookies or per-person identifiers. That's the only measurement in use. If we ever add analytics, it will be a cookie-less, aggregate-only kind, and this page will say so first.
Fonts load from Google Fonts, which means your browser requests font files from Google's servers on first visit (they're cached after that). That request carries what any web request carries — IP and browser headers. It's the single external dependency on the site.
Questions about any of this: the contact page. Last reviewed 3 July 2026.