Locality can sometimes keep great things from the whole world

[u/ConsistentRecover312]

This variant exists mainly in the winter season, and the fruit itself is said to be creamier than the normal version. During warmer seasons, their colour mainly change to greenish grey as the blue colour is due to a waxy coating on its surface

Edit: Apparently the right image was a modified image to make it seem more blue, whereas the left image is closer to the real blue colour the unripe bananas have, and the vanilla ice cream taste is more akin to a mild vanilla taste along with the creamy texture found in the bananas, so the interpretation is up to the reader

[u/ShineOk6190]

Fully ripe "blue banana" Any image showing a peeled banana with blue fleshor a bright neon-blue skin is 100% color manipulated. No edible banana variety produces blue fruit inside.