Copied from https://design.duolingo.com/illustration/shape-language#color
Polar F7F7F7
Swan E5E5E5
Hare AFAFAF
Wolf 777777
Eel 4B4B4B
Squid EBE3E3
Walking Fish FFDFE0
Flamingo FFB2B2
Pig F5A4A4
Crab FF7878
Cardinal FF4B4B
Fire Ant EA2B2B
Canary FFF5D3
Duck FBE56D
Bee FFC800
Lion FFB100
Fox FF9600
Cheetah FFCE8E
Monkey E5A259
Camel E7A601
Guinea Pig CD7900
Grizzly A56644
Sea Sponge D7FFB8
Turtle A5ED6E
Owl 58CC02
Tree Frog 58A700
Iguana DDF4FF
Anchovy D2E4E8
Beluga BBF2FF
Moon Jelly 7AF0F2
Blue Jay 84D8FF
Macaw 1CB0F6
Whale 1899D6
Humpback 2B70C9
Narwhal 1453A3
Starfish FFAADE
Beetle CE82FF
Betta 9069CD
Butterfly 6F4EA1