What colors were dinosaurs?

Direct fossil proof for dinosaur skin color is unknown. Paleontologists think that some dinosaurs possible had protective coloration, such as pale undersides to diminish shadows, uneven color patterns (camouflage) to make them less visible in vegetation, and so on. Those dinosaurs that had adequate armor, such as the stegosaurs and ceratopsians, may not have needed defensive coloration but may have been brilliantly colored as a warning to predators or as a display for finding a mate. Most dinosaurs possibly were as brightly colored as modern lizards, snakes, or birds.