GA4 is one color which really varied from car to car or plant to plant. My GA4 71 RR jams and trunk were excellent so I carefully sprayed just the exterior. My paint guy came to my house twice when I was restoring it to make sure the exterior mix matched the original jams and trunk.
My point is: I have seen great color variations with GA4 cars (lighter,darker, more grey, more blue hue). Much more so than other factory colors.
Anyway...It's a beautiful color particularly on a 71 RR or Charger!!