The command to spawn a blue axolotl in Minecraft is /summon minecraft:axolotl ~ ~ ~ {Variant:4}. As soon as you press enter, a rare blue variant should spawn instantly in your world.

However, there is a command to spawn blue axolotls, saving some time and effort if you want to skip to the good stuff: Command: /summon minecraft:axolotl ~ ~ ~ {Variant:4} ...

Can blue axolotls be bred in Minecraft? Yes, blue axolotls can be bred in Minecraft. Each time you breed the axolotls, they will have a 0.083% chance to produce a blue axolotl.