ΔE 13.1, fair: the same colour family, but not a straight swap. Baneblade Brown is a little lighter, more muted, warmer than Mid Mustard Khaki.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Baneblade Brown is a little lighter, more muted, warmer than Mid Mustard Khaki.
The same difference applies the other way round: Mid Mustard Khaki is a little darker, 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 Mid Mustard Khaki on the colour wheel See Baneblade Brown on the colour wheel
All matches: Mid Mustard Khaki equivalents · Baneblade Brown equivalents