ΔE 8.3, close: similar, with a visible difference side by side. Chestnut Brown is a little lighter, more muted, cooler than Rhinox Hide.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Chestnut Brown is a little lighter, more muted, cooler than Rhinox Hide.
The same difference applies the other way round: Rhinox Hide is a little darker, more saturated, 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 Chestnut Brown on the colour wheel
All matches: Rhinox Hide equivalents · Chestnut Brown equivalents