Shooter games : Either Blue/teal/azure or other shades of blue and transparent or gray and transparent
MMO games : Either blue and transparent or shades of Brown+Gold or a very dark red, so dark it's almost brown
Mobile and Browser RPGs : Cutsie icons and everything is green, brown and shiny with a little bit of blue
Source: Search image... google "MMO UI" or "RPG UI" and everything is either transparent or brown for example
just search any genra of game by UI and your google page will almost look like an array of identical images.
Is this there only because players are used to certain types of UI? Like how back in the day, talking decades ago.... some RPGs used Blue for health and green for energy or red for your teams health bars and blue for the enemy health bars simply because no one was used to the colors we consider normal today so any color scheme was ''normal" at the time?
or is there simply a psychological reason for these color schemes dedicated to certain game genras?
I'm asking because I'm making an rpg game, I'm making the UI now , and I just noticed that I never played a single rpg game that deviated from the standard rpg ui colors...