ΔE 11.8, fair: the same colour family, but not a straight swap. Feral Brown is noticeably darker, more saturated, cooler than Rhinox Hide.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Feral Brown is noticeably darker, more saturated, cooler than Rhinox Hide.
The same difference applies the other way round: Rhinox Hide is noticeably lighter, more muted, warmer.
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 Rhinox Hide on the colour wheel See Feral Brown on the colour wheel
All matches: Rhinox Hide equivalents · Feral Brown equivalents