Yes, '68 Q1 is towards the green side instead of the red side.
I don't have the formulas handy, but B5 appears whiter, and B7 blacker with maybe a bit of red.
All are metallic.
Q1 has been a favorite of mine since the '68s were new; and I've owned two:
A Hemi RR base coupe with silver & black interior
My current 383 base coupe with blue interior