ΔE 10.6, fair: the same colour family, but not a straight swap. Antique Gold is a little lighter, more muted than Golden Armour.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Antique Gold is a little lighter, more muted than Golden Armour.
The same difference applies the other way round: Golden Armour is a little darker, more saturated.
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 Golden Armour on the colour wheel See Antique Gold on the colour wheel
All matches: Golden Armour equivalents · Antique Gold equivalents