From Bulbapedia, the community-driven Pokémon encyclopedia.

Blue can refer to several things:

• A Japanese Pokémon game, see Pokémon Blue Version (Japanese).
• An English Pokémon game, see Pokémon Red and Blue Versions.
• An in-game character, see Blue (game).
• A Pokémon Special manga character (known as Green in Viz Translations), see Blue (Special).
• A Pokémon Special manga character (known as Blue in Viz Translations), see Green (Special).
• A Pokédex color group, see Blue (color group).