ΔE 13.7, fair: the same colour family, but not a straight swap. Primer Taupe is a little lighter, more saturated than Astrogranite.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Primer Taupe is a little lighter, more saturated than Astrogranite.
The same difference applies the other way round: Astrogranite is a little darker, more muted.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Astrogranite on the colour wheel See Primer Taupe on the colour wheel
All matches: Astrogranite equivalents · Primer Taupe equivalents