Aren't Dire Avengers always blue? I think you are thinking probably of Gurdians they have diffrent colors depending on Craftworld they belong to
I'm just going to leave this here.... https://forum.eternalcrusade.com/threads/aspect-warrior-visual-customisation.18842/ I'm afraid this present thread is some kind of duplicate... I understand one doesn't want to dig through 500 pretty tough posts about Eldar visual customization, but I think there are some kind of "check point" posts that summarize what has been said ... Good luck
