Paint Color Ideas for Black, Cranberry and Beige Bedroom

Assuming your window is on a different wall, I would paint the wall behind your bed the same colour as your curtains!

I would go with a lighter variation of the cranberry. For example violet, and lavender.

If you have cranberry, a sage green is really a good color to go with cranberry. You could also add some pillows to go along with the cranberry on the bed.