Understanding RGB representations

I recently heard someone talk about "html colors", what they meant by it was an rgb hex triplet, prefixed with a hash.

The most common implementation is RGB24 (24-bit RGB), which is also what I'm going to talk about in this article.

It's 24-bit cause it's 3 bytes, one for each of the colors, Red, Green, and Blue.

There's a lot of different numeral systems being used in computer science, hexadecimal, octal, binary, decimal, &c..

these are all the same, just different numerical systems of representation, and you can easily convert these values using the shell.

hex to decimal

$ printf 'rgb(%d, %d, %d)\n' 0xff 0xff 0xff

decimal to hex

$ printf '#%02x%02x%02x\n' 255 255 255

sometimes you end up using floating values like rgb(0.43, 0.64, 0.31), in which case; you multiply by 255.

But to the main point of this article; stop saying stuff like "rgb or hex?"