Well, my tree isn't 350 green nor the real deal that smells like forest, it's actually gold and plastic but a set of pantone christmas balls will look superb in that anyway.
Choose from Pantone 186, Pantone 286, Pantone Cool Gray 10, Pantone 18-2120, Pantone 165, Pantone 15-5519, Pantone 377, Pantone 268, Pantone 14-0848 or Pantone 672. I might just do 186.