Note that the headline gets this wrong but the page linked to gets this right.
sRGB or Rec2020 or ACEScg etc. are color spaces with known primaries and a known whitepoint. This is not nit-picky. Almost everyone doing CGI for the first time w/o reading up on some theory beforehand gets this wrong (because of gamma and then premultiplication, usually in that order).
Then there are color models which are also color spaces. CIE XYZ is an example.
Note that the headline gets this wrong but the page linked to gets this right.
sRGB or Rec2020 or ACEScg etc. are color spaces with known primaries and a known whitepoint. This is not nit-picky. Almost everyone doing CGI for the first time w/o reading up on some theory beforehand gets this wrong (because of gamma and then premultiplication, usually in that order).
Then there are color models which are also color spaces. CIE XYZ is an example.
[1] https://en.wikipedia.org/wiki/Color_model
[2] https://en.wikipedia.org/wiki/Color_space