1. Gray: Various shades of gray are prevalent among many shark species, including the dusky shark, nurse shark, and great hammerhead shark.
2. Brown: Brown coloration is found in species like the brown shark, wobbegong shark, and bull shark.
3. Blue: Some sharks have blue skin tones, such as the blue shark and the oceanic whitetip shark.
4. Black: Several shark species exhibit black coloration, including the blacktip shark and the Greenland shark.
5. White: While less common, some sharks have white markings or white underbellies, such as the great white shark and the lemon shark.
6. Yellow: Yellowish or golden hues can be seen in sharks like the yellow stingray and the lemon shark.
7. Green: Greenish coloration is found in species such as the Pacific spiny dogfish and the chain catshark.
8. Red: Although not as widespread, some sharks have reddish hues, such as the red shark and the red-tailed shark.
9. Patterned: Many shark species have intricate patterns on their bodies. For example, the tiger shark has vertical stripes that resemble tiger stripes, while the leopard shark has dark spots similar to a leopard's coat.
10. Countershading: Countershading is a common strategy observed in sharks, where the top of their bodies is darker and the underside is lighter. This technique helps them blend with the surroundings, making it harder for predators or prey to spot them.
It's worth noting that some sharks may also exhibit color changes during different life stages or when adapting to various environments.