No, all the reference sources (namely the various film prints obtained by Mike Verta, Poita, and Team Negative 1) that have come to light since ANH:R was made have proven pretty conclusively that both of those things were intentional. They were over-exaggerated by the shoddy BR color grade, so early color grades like Adywan’s overcompensated.
Although I think Adywan did say that he made the Death Star’s walls more of a stark gray as an artistic choice even though he was aware of the intentional blue tint, it seems like he’s changed his mind on that in the years since.
Alright, thanks for making that clear. I’m not as familiar with the proper original theatrical colors for the OT as I probably should be.