I would look at Blue Gray, Mizzle, Elephant's Breath or Pointing all by F and B. I like the idea of bluey grey walls with the cranberry colour in the curtains and Mizzle is more of a sea green/grey colour which is nicer than it looks on their web site. Elephant's Breath would complement the cream in the curtains and Pointing is a safe choice. However I saw several rooms on Houzz with pale walls with cream/cranberry curtains to give a feeling of light and space . Hope this helps.