ΔE 12.4, fair: the same colour family, but not a straight swap. Brass Scorpion is a little lighter, cooler than Rusty Brass.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Brass Scorpion is a little lighter, cooler than Rusty Brass.
The same difference applies the other way round: Rusty Brass is a little darker, warmer.
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 Rusty Brass on the colour wheel See Brass Scorpion on the colour wheel
All matches: Rusty Brass equivalents · Brass Scorpion equivalents