- From: Dan Burzo via GitHub <sysbot+gh@w3.org>
- Date: Mon, 29 Jun 2020 16:21:11 +0000
- To: public-css-archive@w3.org
You might find [this thread](https://github.com/w3c/csswg-drafts/issues/2492) useful. I'm hard-pressed remembering the exact details, but you can look at the conversions in [culori](https://github.com/evercoder/culori). I think the errors in a rgb -> lab -> rgb roundtrip are now negligible, or at least don't produce a different hex code.
You can test with this sample code:
```js
let culori = require('culori');
let hex = culori.formatter('hex');
for (var r = 0; r <= 255; r++) {
for (var g = 0; g <= 255; g++) {
for (var b = 0; b <= 255; b++) {
let c = {
mode: 'rgb',
r: r/255,
g: g/255,
b: b/255
};
let ret = culori.rgb(culori.lab(c));
if (hex(c) !== hex(ret)) {
console.log(hex(c), hex(ret));
}
}
}
}
```
--
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Received on Monday, 29 June 2020 16:21:12 UTC