In Magic, cards come in one of 5 colours* - white, blue, black, red, and green. Each colour has specific mechanics associated with it as well as a general play style. Magic players often have a preference for specific colours as a result.

The colours are analogous to factions in strategy games, or to the different heroes in Hearthstone, but with more flexibility to mix colours in a single deck.

* or colourless, or multicoloured combinations