I have news that might take away some of the indecision about choosing roof colors. Lay a large color sample of sage green onto/next to various charcoal shingles. I believe you see most"work togeather",some better than others. Why? look very closely at granules in shingle and you will notice there's actually many different colored granules that collectivily when viewed from afar,appear as charcoal. While you are at it,compare various gray shingles the same way and I believe gray will "work with"even better. This is no accident ,shingle manufactures employee the finest color consultants to be found to see that their shingles look good on a variety of homes. If you found that to be fun,visit a ceramic tile showroom to see how different grout colors change the eye's perception of tile color.

I’ve had my eyes on this roof myself for a couple of months now. I really think that it would look great on a white house. If it's still difficult to decide, you can play safe and get a grey shingle roofing. I feel like it would look good on any house.