Players have a variety of colors from which they can choose for their penguins. When creating an account, the player is asked to pick one from 18 options for free. Further colors can later be bought from the Penguin Style catalog in the Clothes Shop for 20 coins each.
Colors are essentially clothing items. However, they cannot be removed from the player card, and the player is only able to change colors. In the inventory, color icons are represented as colored blobs with eyes.
Some colors can only be worn by mascots or not be worn at all. This used to be true for Ocean Blue, a test color that was worn by Gary the Gadget Guy until it was made available to players.