ΔE 20.3, loose: different enough that you should pick on purpose. Auric Armour Gold is a little darker, much more muted, warmer than Aztec Gold.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Auric Armour Gold is a little darker, much more muted, warmer than Aztec Gold.
The same difference applies the other way round: Aztec Gold is a little lighter, much more saturated, cooler.
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 Aztec Gold on the colour wheel See Auric Armour Gold on the colour wheel
All matches: Aztec Gold equivalents · Auric Armour Gold equivalents