Ive always been a fan of gray and yellow (in comb with white/cream) Can't say exactly which shade since Im not familiar with the BM color in question- is it a cool gray or warm taupe-ish? Also, yellow for a kitchen is classic so I think I'd look in the yellows.

I love Revere Pewter, as well. It's in our kitchen and now I just painted our master bedroom with it.

I think a gray-blue would look GREAT with it, although I'm not sure that counts as fun and cheery. I love the idea of an apple green for a kitchen.

I think the Revere Pewter goes with so many colors (except, I'm thinking, maybe not orange), that you have a lot of options at your disposal. I'd be more concerned about coordinating with the color of your cabinets and counters than anything else.

I love yellow with gray.

I however, have lots of that "pear green" color with my gray. In fact the painter comes Monday to paint my 2 story foyer with gray, and the living room will be BM Wasabi. Another color that looks great with it is pink and hot pink. I just painted the insides of my foyer closet and the linen closet (which is in the same hallway but upstairs) in hot pink. It is so cool, and unexpected, but it looks great.

Here's my green chair in my gray room. I also have other touches of this color that aren't in this photo.
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Here's yellow and gray (not my kitchen)
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And here's pink (Molly Sims apartment):
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And if you can imagine the walls in their soon to be new gray color, here is my hot pink closet:

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So much goes with gray. Even purple. Love purple with gray.

beekeeperswife, I know I've seen parts of your house before but I KNOW I've not seen that green chair in that room. Because if I had I'd be on your doorstep to sit in that room right now. I LOVE it.

Awesome decorating!