Thank you!! In fact, I agree based on my test today. I tested the Emerald side-by-side with the Natura to test "stickiness". Sure enough, the Natura dried sticky - and the Emerald was just fine (phew!!). So Emerald it is. So if anyone is looking for the best no-VOC paint, I'd recommend Emerald way over Natura. Just thought that I would post this in case anyone is making this decision.

How about a silvery sage like something on the SW Ancient Marble/Svelte Sage strip? I think green is a great kitchen color as it complements oak and cherry cabinetry so well. A neutral green like the colors mentioned above will not call attention to itself. How light or dark you go with the color would be your personal choice and also contingent on how much light the room receives. Typically a room that receives a lot of natural light can take a darker paint color. If you can post a picture over at the Home Decorating site, you will get some other good opinions.

White, I'd think, because that's pretty intense stone and you don't want wall color clashing with it. Or if you want to double down on the greenness, color match with the stone to derive a pale green and accent with black, like one of those epic 30's bathrooms.

Emerald, oak, and white can work well together. The bisque color may work. I would look at matching the tile to the tub if you can't change the tub. It would help to see photos.