You are, of course, referring to the eye dropper in the Image Editor Select Colour tab.
or if it is Saved? (e.g. Exit Editor > Main Window > back into Editor and same Eyedropper values show there as if no change was made?)
No, you don't have to exit the Editor, just OK on the Editor preview and then use your mouse pointer to read the filtered RGB values.
I think there must be a good reason why the Sel Col eye dropper always reads the basic image data, ie. not filtered or affected by the monitor profile.
One possible reason is that when the eye dropper is used, it indicates the colour selected so you know which row to adjust. It's possible that if it read the filtered version, the wrong row could be indicated and you'd end up adjusting the wrong values and really get in a mess.
We need Mike to comment on this, I'm sure he'll spot the post
Terry