If the windows are north facing, the light is cooler, so you need a warmer tone of white. If the windows are west or south-facing, the light is warmer, so you want to go cooler with the white to avoid a yellow cast. If the windows are east-facing, the light tends to be neutral. You didn't mention the direction of your windows, which is why I am being vague.

our vacation home is painted atrium white, if def has a pinkish under tone (vs blue or green). paint a section of wall into both sides of a corner, see if you like how it looks in the shadows. painting a piece of posterboard isnt going to be enough to see if you like it or not.