The invention relates to the carrot variety designated Purple Royale. Provided by the invention are the seeds, plants, and derivatives of the carrot variety Purple Royale. Also provided by the invention are tissue cultures of the carrot variety Purple Royale and the plants regenerated therefrom. Still further provided by the invention are methods for producing carrot plants by crossing the carrot variety Purple Royale with itself or another carrot variety and plants produced by such methods.