In case anyone is wondering: RGB HEX C4C0AA
I know it sounds like nitpicking, but we are talking about subtle differences in shades of beige, after all.
An LCD display will have a white backlight, with some distribution of wavelengths, and each pixel has filters that pass a certain band of wavelengths (one band each for red, one for green, one blue). Different LCDs will use different backlights, with different filters. An OLED will have a three kinds of emitters, each with its own distribution of wavelengths. CRTs used to have three kind of phosphors that glowed with their own characteristic colors.
Now, if you could give us the CIE XYZ coordinates of the color, or the CIELAB coordinates, that would be very helpful. They are device-independent.
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°".
https://www.pantone.com/color-finder/14-0105-TPG
But you're right -- with a color dropper, I'm getting all kinds of results, typically a darker ~999281.
While color names are useful, if I wanted to reproduce this paint color at the local paint store it is more reliable to bring the RGB code. I have some colors in my house for which I have the name, but they couldn't find the actual reference. So they generated an RGB code with a color scanner they have, and now I keep a record of that in case I need more paint.