If you like lilac but don't want to do it Changing Rooms style circa 2000 then check out the Little Greene Paint Company - Weekend is an absolutely gorgeous, stylish shade, very pale. Also look at Whisper, Welcome and Welcome Dark. If You like something more decisive then go for Clockwise here
If you like blues my current favourites are Bone China Blue (Little Greene) or Parma Grey
I'm about to do a guest bedroom in Yellow - possibly this but more likely this although my favourite F&B yellows are Babouche or Orangery.
Quite possibly, it's really light in there, so I think we could get away with it. I'm not sure which colour curtains we'd put in the upstairs window though. There's currently a green stripy roman blind. It's 'orrible!
Hee hee, there was me feeling all unique with my lilac bedroom (F&B Calluna, dark purple and pale blue bedding, mostly dark wood antique furniture, some pale wood vintage bits. Ignore the Ikea wardrobe...) It's luvverly. It's a bright but north facing room, and it's just so tranquil and restful.