The main female protagonist in the Super Mario world of video games is Princess Peach. (She was formerly known as Princess Toadstool in North America.)
In one of the first games, for example, Mario’s goal is to rescue the princess from the castle where she’s trapped. Throughout the game franchise’s existence, the princess has become a playable character and has her own game. Her bright pink outfits make her stand out from other characters.
One theory behind Peach’s name is that it came from Japanese peaches, which are pink in color compared to the orange peaches in North America.