I have a quick question concerning color space conversion:
I noticed that a color in the RGB color space has "multiple mapping" in CMYK space. Sorry if I am using the wrong term. What I mean is that, say, a black color in RGB is 0,0,0 but in CMYK, you can have the correponding color either as C:75, M:68, Y:67 K:90 or C:50; M:50; Y:50, K:100, etc.. I also noticed that in Photoshop, it always converts a black color into C:75, M:68, Y:67 K:90 regardless whatever I set it in color picker.
I am only concerned with the black color in a RGB mode. So my question is: is C:75, M:68, Y:67 K:90 the "darkest"/"most black" in RGB mode? SOrry for my silly question.