There are many colors that would go well with your pine walls. It really depends on your preferance or the look you are going for. I would stick with natural earthy colors like browns, greens, or cream colors.
If you like your living should made this place warm. If one of the walls is pine you should made one more, opposite wall with the same material. If you safe a natural color of pine wood paint the other two walls for a little darker color. I'll be try with some brown colors.
