The midnight parrotfish has a deep blue body with light blue patches along its sides and head. The exact location of light blue patches differs between each fish, but all midnight parrotfish have a light blue patch on the underside of the beak. Unlike other parrotfish species, the midnight parrotfish retains its coloring through its juvenile and adult stages of life. Both male and female midnight parrotfish exhibit this coloring. The parrotfish gains its name from its hard beak it uses to scrape its food from hard substrates.
