ΔE 21.6, loose: different enough that you should pick on purpose. Gnome Flesh is noticeably lighter, much more saturated, warmer than Baneblade Brown.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Gnome Flesh is noticeably lighter, much more saturated, warmer than Baneblade Brown.
The same difference applies the other way round: Baneblade Brown is noticeably darker, much 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.
See Baneblade Brown on the colour wheel See Gnome Flesh on the colour wheel
All matches: Baneblade Brown equivalents · Gnome Flesh equivalents