Hex codes

[Dave 999]

The HEX code for red is #FF0000, so why is the HEX code for red on a colorchecker #AF363C? Blue & green are also different.... How will/ does this effect processing? 

[D Fosse]

That's a misunderstanding. Hex is just base 16 notation for RGB numbers. FF000 = 255-0-0.

What actual color that is, what kind of red, depends entirely on the color space. 255-0-0 in sRGB is not the same color as 255-0-0 in Adobe RGB.

Numbers are color space specific. Hex numbers are color space specific just like any other numbers. They are meaningless until a color space is assigned.

[Dave 999]

Thanks for that, didn't know why this was and wondered what difference it
made in processing. Monitor is calibrated using data color spyder x 👍

[Mylenium]

What Mr. Fosse already wrote - none of that matters if you are not working with consistent color management. The colors sampled after a color space transform/ range conversion like e.g. by instating a monitor or document color profile have nothing to do with the abstract mathematical values that were dialled in previously. They only do not change if everything is lined up perfectly in the CM department, i.e. the proof preview is set accordingly on a calibrated monitor and all that stuff.

Mylenium

[Test Screen Name]

There are 16 million hex codes. Quite a lot of them will be "red". Just because one red is #FF0000 doesn't mean they all are. Welcome to the wonderful world of colour, where everything is more complicated than it first seems. #FF0000 doesn't even mean the same red for everyone.

[D Fosse]

Come on guys, it's not as complicated as that!

When people keep hearing how "complicated" it is, it becomes a self-fulfilling prophecy. They start looking for complicated explanations and solutions when it's right in front of their noses. So they mess it up, and then it really becomes complicated.

Color management isn't difficult. Functionally, it's one of the simplest things there is. Don't break it, and it just works.

All you need to do is keep track of your color profiles, and make sure they are embedded. The only added extra is that you should also keep tabs on your monitor color space, so you need a calibrator to do that. That's the very modest expense of , say, one cheap video card, or a 500GB SSD. Nobody ever complains those are too expensive.

Dave, here's a random example of how the same color numbers yield different colors: