NY Good Questions: Paint Color Suggestions?

Dear AT,

We need to paint our living room.

The last renter had the entire room painted a complicated mix of faux marble finishes and the taupe is quite dark.

Even though we have large bay windows, because the ceilings are so high the room feels like a cave, especially at night.

I would like to take the ceiling (decorative molding included) 100% white, but I wonder about the walls.

What color would look best and still bring an airy, light feeling into the room?

I was inspired by the sky blue walls in one Domino magazine photo...

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Will ultra-light blue (or any ultra-light color) look whiter or more saturated at night?

Does anyone have suggestions for another paint color?

Thanks! Rachel