She is a light orange fish with a dark orange dorsal fin. She wears a blue dress and dark blue shell earrings. She has dark pink lips. She is blue in "The SpongeBob SquarePants Movie", bright orange in "Whale of a Birthday."
In "The Slumber Party," she is yellow but retains the dark orange dorsal fin. Her earrings are now cyan and she wears green nightgown. This form appears more frequently than her orange form.
She thinks that Mr. Krabs is lame because Pearl's parties are so cheap, such as sharing a balloon, or having paperclips as party favors. She calls SpongeBob the "Really Tall One," in "The Chaperone." She loves to go shopping. She isn't always nice to Pearl, as seen in "The Chaperone," when she helps throw her and SpongeBob out, "Whale of a Birthday," where she frequently makes fun of her boring parties, and "The Slumber Party" when she says she won't be her friend anymore if SpongeBob turned into a zombie and ate her brain.