I think if you could pull a light pink from the rug that would coordinate and add color.

Pale grey

Lavender is an option. Sherwin Williams Ash Violet:

Anything but grey. I agree that a pale pink would be a good choice.

Something in the lavender or lilac range for sure. It'll look great with that rug.

I like the last one er612 did. Or the second to last. Not the gray or darker pink though. It's too much.

I love the pink ceiling!

Maureen, how clever! I like it!

No, you can leave the crown molding the same color as the trim , but paint the ceiling. All my ceilings are painted it gives the room depth and interest.

Sorry I edited my comment. I didn't read your question properly. I meant to say you don't have to have crown molding, but if you do it will still work.

I agree with Iwfrommy . In this house we did most of the ceilings a shade or two darker than the walls. We live in a lighter brighter climate here. In our old house we cut the wall color in half with white. We were in a darker area there. The idea that a ceiling has to be white is a dated one.

It's crazy how different even the exact wall color looks when it's on the ceiling. The light hits a horizontal plane completely different than a vertical one, and the color looks way lighter on the ceiling than it does on the walls. And the best part is, cutting in is a breeze. Since only the sheen is different, imperfections in the cut-ins are virtually invisible. I'll never have a white ceiling again :). Anyway - post pictures when you're done - can't wait to see how it looks!