I love yellow in the kitchen. It seems to bring about a happy confident feeling, even on a gloomy day. It can be bold like a lemon, or soft like butter cream. I put cornmeal on my kitchen walls and received many compliments. It looks great with white and gray. Teal would be a perfect accent. If you decide to try a new accent color, you can always change out the teal with a sage green color, or even black. I've found most colors work with yellow.