[geekmaster]

Originally Posted by pdurrant

You have your subtractive and additive labels the wrong way around.

Oops. Brain fart. Fixed.

Originally Posted by pdurrant

And the pigment primary colours really are Magenta, Cyan and Yellow. Although children painting will be told to use Red and Blue instead of Magenta and Cyan.

I guess that tells my age. The "historical" (RYB color model) pigment primaries (what I learned in school) are Red, Yellow and Blue: https://en.wikipedia.org/wiki/RYB_color_model

Nobody bothered to notify me that the RYB model was replaced with the CMY model (which I mentioned is used in inkjet printers, with K added). But it does make more sense, and probably changed BECAUSE of inkjet printer technology. In fact, I still own one of the very first inkjet printers, which was only CMY which made "black" really just a dark gray. The addition of black was a huge improvement. And those early printers were not "self-purging" -- mine still has the "printer enema kit" that came with it, which required almost daily use to keep the inkjet orifices from clogging. A really high-maintenance printer, but technology marches on...

Thanks for the heads-up. I learned something new. Who would imagine they would change the primary colors in my lifetime? I updated my post.

EDIT: It makes perfect sense that somebody in the publishing industry would be aware than the printing industry "process color" standard had become the new default subtractive color system taught in schools. People outside of related "subtractive color" related industries would have no reason to be aware of such a change, unless notified (as I just was today). Now I know.