User blog comment:Maki Kuronami/The Naming Rule of Remnant/@comment-1141856-20140101001404/@comment-4773581-20140101013937

In that case, EHVA and MANA have their color associations backwards, which I, personally, find rather amusing. Especially given the associations through which they draw their association.

I mean, in pretty much everything these days, but especially videogames, mana, also called "MP" (among a plethora of other terms), is represented by the color blue, partly because the life bar in said games is green.