What's color is better for crown molding?

There are some tips to make the decision easier on you:
Don’t paint crown molding in white color.  Crown molding will collect dust, and then it will look dingy.  So unless you want to dust it frequently, paint it an off white color instead of white.
Paint the crown molding a different color than the ceiling and the wall.  It makes the crown molding pop more.  You can also paint the crown molding the same color as the window, door, casing moulding, and baseboard molding.
Paint the crown molding the same color in the whole house.  It will create a unification of your home.  But there are exceptions to this,  For example, if you have one unique room that has exposed stained wood beams, you might want the molding to match the beams.