RGB Mew from Pokémon are three special Mew cards from Pokémon TCG: 30th Celebration Anniversary Collection.
RGB stands for Red, Green, Blue. There is a red, green, and blue Mew, numbered R/RGB, G/RGB, and B/RGB respectively. The theme refers both to the original Pokémon games Red, Green, and Blue and to the three primary colors of light in the RGB color model.
See: RGB
