ΔE 11.6, fair: the same colour family, but not a straight swap. Brown is a little lighter, warmer than Basilisk Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Brown is a little lighter, warmer than Basilisk Red.
The same difference applies the other way round: Basilisk Red is a little darker, 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 Basilisk Red on the colour wheel See Brown on the colour wheel
All matches: Basilisk Red equivalents · Brown equivalents