Well in the bathroom I saw, they had the entire panelling painted in this moss green, and above it the walls were painted cream. They had a wooden floor and underfloor heating, and the natural wood looked good as it somehow warmed the room.
The other room I saw was a utility where the panelling was distressed in a cream colour - in an old country house style- you know the type, old school clothes hangers on the wall, wellies on the floor, trug on the countertop. The panelling was wooden underneath- probably an oak colour, and the cream was painted on and then sanded off in places to make it look aged and worn. The panelling here was three quarters and at the top was a shelf all around the room on which they had put bits and pieces, kitchen scales, baskets etc. I think the wall behind was just painted- but I can't for the life of me remember the colour.
But if your tiles are white, can't see cream working. Blue is cold, green might be nice but will clash with red. Sorry I cant help-I'm certainly no interior designer!