2nd Gen Blue and Green

[jasonthedrag0n]

Does anyone know why they changed Green to Blue for the 1st gen English versions of the games?

 

[ItWasABadDream]

Does anyone know why they changed Green to Blue for the 1st gen English versions of the games?

Probably a variety of reasons. They had to westernize the franchise and were probably aware that red & green signify the holiday season in this country, so to have them together would just be weird. Red, green, and blue are the 3 primary colors, so that fits together well. Likely a bunch of small reasons like that...

 

[GiovanniViridian]

I say it's because the English Red and Blue versions are based on the Japanese Blue version(I think, in terms of maps like Cerulean Cave and bugs for the infamous glitches like the Dokokashira Door Glitch), so it made sense to name the English versions as Red and Blue instead of back to Red and Green.

 

[LusoTrainer]

Does anyone know why they changed Green to Blue for the 1st gen English versions of the games?

They didn't. They used the japanese Blue as a basis and ported Red as well.

 

[giradialkia]

They didn't. They used the japanese Blue as a basis and ported Red as well.

I think they're asking why the pairing was Red and Green in Japan, whereas elsewhere it was Red and Blue. So yes, in that regard they changed Green to Blue.

I've just done some Googling and it's actually hard to uproot the reasoning behind it. I read, a few times, that it was something to do with the conflict between water and fire, that maybe the localisation teams thought it would sell better if there could be a sense of competition. This is very loose, but it's something along those lines. It was basically a marketing decision.
By the time their remakes rolled around, I guess those 90's opinions on what's necessary in appealing to game-buyers were considered no-longer-relevant, hence FireRed and LeafGreen.