ΔE 12.7, fair: the same colour family, but not a straight swap. Boot Strap Brown is a little lighter, more saturated, warmer than Stormvermin Fur.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Boot Strap Brown is a little lighter, more saturated, warmer than Stormvermin Fur.
The same difference applies the other way round: Stormvermin Fur is a little darker, 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 Stormvermin Fur on the colour wheel See Boot Strap Brown on the colour wheel
All matches: Stormvermin Fur equivalents · Boot Strap Brown equivalents