- Gary the Gadget Guy is the only mascot to wear this color, as seen during the Penguin Secret Agency (PSA) missions.
- However, Gary only has regular blue in game.
- Old Blue can be sometimes seen being worn by Non-Playable Characters throughout the Club Penguin Rewritten Island.
- In the Sled Racing mini-game, when you reach the bottom of the Ski Hill, two Old Blue Penguins can be seen clapping for the players, congratulating them.
- In the Catchin' Waves mini-game, two Old Blue Penguins with surfboards can be briefly seen during the introduction.
- Under "Actions" on the in game Toolbar, all the penguins are wearing Old Blue.
- The Special Dance penguins in The F.I.S.H. wear this color.
- It can be obtained by the code 1MILLION
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