The word "gray" isn't well-defined. When you're choosing roofing product labeled as "gray" you could end up with anything - blue, green, etc.

Gray options will need to match the stone - that stone needs to inform every color choice. More so than the brick color.

Choosing a dark charcoal almost black or a Moiré black is the better way to go because it will work with both the brick and stone and you won't have to worry about choosing a gray that's different from the stone.

@lorisawaya thx lori

i have samples of gaf charcoal (left) and atlas pristine black (right)...are they kinda the black your thinking? 

 also would a shingle with variation like this be a bad idea? or should stick with more a of a solid background?

I would choose the darkest, closest to black and the most plain, least amount of pattern and variation possible.

Because there's enough going on with the mix of material on the body, e.g. stone and brick.

Posted by: @lorisawaya

I would choose the darkest, closest to black and the most plain, least amount of pattern and variation possible.

Because there's enough going on with the mix of material on the body, e.g. stone and brick.

thank u for your time!

@lorisawaya well its go time, my roofer but some samples that i picked on the roof of the garage.

i know you said black would be the best but i was wondering if the gray nearest to the brick would also work....i like the black just seems a bit dark for my taste.