ΔE 23.6, loose: different enough that you should pick on purpose. Top Brass is a little lighter, much more muted, warmer than Liberator Gold.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Top Brass is a little lighter, much more muted, warmer than Liberator Gold.
The same difference applies the other way round: Liberator Gold is a little darker, 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 Liberator Gold on the colour wheel See Top Brass on the colour wheel
All matches: Liberator Gold equivalents · Top Brass equivalents