Blue Animals

Pigmentation plays a significant role in influencing body color. However, in most animals, the blue color isn’t a result of the pigment. Instead, the molecular structure and ability to reflect light results in the blue body. E.g., the blue jay looks blue since its feather has tiny light-scattering beads that reflect nothing else but blue. The bird would entirely or partially lose its blue when the feathers get destroyed. Of the few species producing a blue pigment, the obrina olivewing butterfly is one.

List of Animals that are Blue


  • Blue Whale
  • Bryde’s Whale
  • Chartreux Cat
  • Korat Cat
  • Russian Blue Cat


  • Azure Kingfisher
  • Blue Crane
  • Blue Dacnis
  • Blue Grosbeak
  • Blue Jay
  • Blue-throated Macaw
  • Common Kingfisher
  • Eurasian Blue Tit
  • Greater Blue-eared Starling
  • Hyacinth Macaw
  • Indian Peafowl
  • Indigo Bunting
  • Lear’s Macaw
  • Little Blue Heron
  • Mountain Bluebird
  • Peacock
  • Purple Honeycreeper
  • Spix’s Macaw
  • Splendid Fairywren


  • Blue Coral Snake
  • Blue Iguana
  • Blue-headed Tree Agama
  • Blue-striped Garter Snake
  • Electric Blue Gecko
  • Ibiza Wall Lizard


  • Blue Damselfly
  • Blue Dasher
  • Blue Morpho
  • Blue Skimmer
  • Steel Blue Ladybird
  • Ulysses Butterfly


  • Blue Christmas Tree Worm
  • Blue Crab
  • Blue Glaucus
  • Blue Lobster
  • Blue Sea Squirt
  • Blue Sea Star
  • Blue Starfish
  • California Blue Dorid
  • Carpathian Blue Slug
  • Greater Blue-ringed Octopus
  • Tambja Kushimotoensis
  • Willan’s Chromodoris


  • Betta Fish
  • Blue Crayfish
  • Blue Devil Damselfish
  • Blue Parrotfish
  • Blue Spotted Pufferfish
  • Cobalt Zebra Fish
  • Humphead Wrasse
  • Ribbon Eel
  • Royal Blue Tang


  • Blue Poison Dart Frog
  • Dyeing Dart Frog
  • Moor Frog