Yug

Ice cream bananas get their 'bluish' appearance from a glaucus (waxy) coating on the fruit. Those do appear to have that glaucus. Although I've never grown them, my neighbor has; and the photo looks like his.

I'm an orchid nut, and we have Rhyncolaelia glauca which is an orchid species that has the waxy coating and similar color, so although I don't grow those bananas, I am intimately familiar with the term, and what it describes.

That being said, you don't know that what you get will be in line with the posted photo. I've seen photos on banana vendor sites that were clearly not what they said they were... In other words: "caveat emptor".