So that is the question, is this a Cobalt blue, or if not, what is it? He (I think) is about 2 inches and relatively mild compared to the Kenyi and OB Zebras. He is a little darker than any cobalt I have seen, and the intensity of his blue is greater making him appear almost fluorescent. He has a few very narrow bands, and at times many more come out. I don't think this picture does him justice, but he is difficult to catch for a picture.