Gold vs Golden Armour

How close are they?

ΔE 16.3, loose: different enough that you should pick on purpose. Golden Armour is noticeably darker, more saturated, warmer than Gold.

Can I use Golden Armour instead of Gold?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Golden Armour is noticeably darker, more saturated, warmer than Gold.

Can I use Gold instead of Golden Armour?

The same difference applies the other way round: Gold is noticeably lighter, more muted, 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.