We've used Kingsport Gray on our house with Sailcloth as the trim color and the front door in high-gloss Black all by Ben Moore. In the gables, we have cedar shake shingles that we painted BM Fairview Taupe, which is the darker of the three colors on the same color card as the Kingsport Gray. The lightest color on that color card is Ashley Gray, which we've used on the interior.

I've had a couple of people stop by and ask what color we've used. It has brown undertones that give it a warm grey feel, as opposed to a cooer grey with blue undertones.

Good luck.

@David -- Thanks for the input. I have a bit darker base color, but also a brownish grey. And I really like the sailcloth on the trim. I just went to get a sample to try it!