After reading your post, I looked at the color chart at my LQS for Moda Marbles. I work there part time. The Baby white is the whitest color made in a marble, and in my opinion is gorgeous! It could not be called a bright white as there are subtle variations in it, but they do not tend toward yellow or tan (at least not compared to the next ones in the sample chart). Keep in mind the samples are about 1 by 2 inches big. I think it would look great with your marble brights! Show us your progress on it!
Linda in Missouri