Yesterday, I picked up a sample of Georgian Revival Blue at Sherwin Williams and put it on a different wall with Montpelier Wedgewood. It was darker and greener and not at all what I was looking for, but it wasn't a complete loss. Putting the other blue on a different wall reminded me how light it really is. I think I might Just stick with it.
I also picked up a whole bunch of paint chips for the kitchen and a sample of the color I found most promising. Thus far, I have liked it in every light I have seen it in.