If you are wondering whether these creatures can be blue like in our fanart Cute Blue Jellyfish and Water Bubbles Sticker - yes, some jellyfishes have a blue coloration. Their color can vary depending on their species and the pigments in their body. While many jellyfish species are transparent or translucent, some have pigments that give them distinct colors, including blue. One of them is the Blue Blubber Jellyfish.