Colour Codes
Colour Codes, a small reckoner that computes in your browser and stores nothing. No account, no cloud, no telemetry.
This is not a screenshot. It's the real tool, running right here: go on, put something in it.
Forged into a knife, this tool ages with use: the blades you reach for wear soft, entries you tend keep their bloom, and the years travel with the file through every reforge.
The colour in your head is one thing; the colour the machine wants is a string of hexadecimal. Colour Codes translates between the ways colour gets written down, so the shade you chose stays the same shade whether it is going into a stylesheet, a paint chat, or a craft project. It converts and keeps nothing, because a colour is not a secret — but your project might be.
Standing facts
- One HTML file. Opens in any modern browser, on any operating system.
- No account. No login, no sign-up, no e-mail wall.
- No cloud. Nothing leaves your browser: no server, no telemetry, no analytics.
- Yours forever. The file keeps working whether or not Offline.Ltd does.
- Ages with use. Entries you tend keep their bloom; the years travel with the file through every reforge.
In ten years
Colour Codes computes; it doesn't hoard. Open the file in 2036 and it will do the same arithmetic it does today, because the arithmetic is written into the file and nothing about it needs a server to agree.
If Offline.Ltd closes tomorrow, nothing on your machine notices. That isn't a marketing promise; it's simply what a file is.
Getting your data out
There is nothing locked in to get out: copy the numbers, or keep the file. Either way you owe no one a request form. No export queue, no "we'll e-mail you a link within 48 hours", no format that only one vendor can read.
Copy the file to a USB stick, a NAS, a folder your devices already sync. It runs on Windows, macOS, Linux, Android and iOS, online or off, because a browser is the only thing it ever needed.
Who else sees this
Nobody. Colour Codes works out its answer in your browser and forgets it the moment you close the tab: there is no store to breach, because nothing is stored. There is no account, no telemetry, no analytics, and no code in the file that opens a network connection, pull the cable and watch it carry on working. How privacy works across the Reckoners tools →
Questions people ask
How do I convert a hex colour to RGB or other formats?
Give it the colour in the notation you have, and it shows the same colour in the notations you need. One shade, several spellings, no transcription errors.
Does the colour converter work offline?
Yes — the whole tool is one HTML file that runs in your browser with no connection at all. It computes conversions on the spot and stores nothing; there is a live demo on the page, and it is the real thing.
Who uses a colour code converter?
Web tinkerers, artists matching a palette, crafters ordering materials by shade, and anyone who has ever tried to describe a specific teal over the phone. The code says what adjectives cannot.
Go deeper on Colour Codes
More Reckoners
Fits your knife at weight 1. Nothing here is final, Knife follows Life. Reforging within your tier is free, forever. Add it, drop it, reforge it later; the file stays yours either way.