The lamp bases are a dark blue. That is what I was looking for and hoped the reviews proved to be true! The first set of lamps we received had yellow marks all over the lamp shades. You couldn’t see it when the lights were off, but when the lamps were turned on it looked really bad. I followed the steps to possibly return the items because it was that bad. To my surprise, Wayfair said I didn’t have to return them (thank goodness I didn’t have to try to fit them back in those boxes!) and they’d just send me two more. It was easiest thing. Sure enough, they sent another set of lamps and they were perfect. I am very pleased with these lamps and extremely happy with the customer service. Shipping was fast as well. I attached photos of the yellow striped lamp shades and the undamaged ones as well.