Brown and Green mostly.
the frogs can't be camouflaged because no green matches frogs. or different colours for the other frogs.
The bright colours tend to be a warning that the frog is poisonous or has a nasty taste. Some frogs use the same warning colouration even though they are not poisonous or nasty tasting - they mimic the warning colouration. Other frogs rely on their drab colouration to camouflage themselves into the background.
Almost ALL frogs are naturally camoflaged.
In nature, bright colours are usually a sign that an animal is either poisonous if eaten, or they use venom as a defence. Other animals see it as a warning to 'leave me alone'. Frogs that are brightly coloured have a poisonous mucus in their skin, which in high concentrations can be lethal.
In the wild: Dart frogs hunt ants and termites by day amidst the thick brush. Because their prey is so small, they spend a great deal of time foraging, increasing their vulnerability to predation. Their bright colors offer them protection as they forage, warning away predators such as snakes. At the zoo:Pinhead crickets and wingless fruit flies.
Water? Water reflects many colours and frogs use it to clean themselves
Different types of animals use camouflage! Some insects as well use camouflage! For example, the stick bug looks as if it is a part of a tree. Frogs, chameleon ( it is a lizard that changes colors) and other colored animals use camouflage as well. Animals and insects use camouflage to protect itself from it's predators!
to catch prey
sometime different kind of frogs live in tropical rain forests and they have different camouflage color on them that will make them camouflage to plants because everything is so color full like them selves
Im pretty sure green tree frogs do camouflage
Different colours blended as in camouflage.
So the can camouflage from there predator.