that depends very much on the lighting in which a picture of Apple Beige is taken, the colour space of the photograph, the colour temperature of the monitor, the display gamma…
Does that really matter? When used in digital content the color
will vary from one PC screen to the next anyway, and from what I
know color matching real materials with such a precision is
basically its own art form.
My preferred color scheme most definitely doesn't look the same
for me as for the designer with his color calibrated screen. But
it's close enough that I wouldn't even consider comparing it.
That depends on what you want to do. If you want to represent Apple Beige _as it appears in a particular picture, on your display setup_, then no: if you want to do anything else using the Apple Beige colour, then yes. Saying "this object has the colour #123456" is not wrong, in that it's Not Even Wrong (https://rationalwiki.org/wiki/Not_even_wrong). It's like saying that my weight is "moves the scales needle by 35°".
