ΔE 22.7, loose: different enough that you should pick on purpose. Gold Interference is a little lighter, much more saturated, cooler than Skullcrusher Brass.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 23). Gold Interference is a little lighter, much more saturated, cooler than Skullcrusher Brass.
The same difference applies the other way round: Skullcrusher Brass is a little darker, much more muted, 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 Skullcrusher Brass on the colour wheel See Gold Interference on the colour wheel
All matches: Skullcrusher Brass equivalents · Gold Interference equivalents