I think it depends on the viewing angle.
It looked really bright green from near 999 Seymour then it changes to blue when viewed from a sharper angle as you walk up the street.
I didn't see any red on it.
I wonder if it shows up bright from high up, like from Capitol?
Pics by me today (2nd is blurry, but shows colour difference)
Reflected clouds.
Sculptural clouds.