Whenever I made elementalist and used the normal red colour from the character making, it looked like that. Might be my screen too. But eveyr dye colour is different on armour, because of its colour components in it. Can make "white" dye on Canthan ranger armour and monks armour, because of their tan base colour.
So hope you understand what I was talking about
Edit: Might be the light effect too. See the warm light around her, and cold light will give a colder colour.