ΔE 11.1, fair: the same colour family, but not a straight swap. Brown Ink is more saturated, warmer than Rhinox Hide. They are different kinds of paint: Citadel Rhinox Hide is an opaque base/layer paint and Reaper Brown Ink is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Brown Ink is more saturated, warmer than Rhinox Hide. They are different kinds of paint.
The same difference applies the other way round: Rhinox Hide is 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 Rhinox Hide on the colour wheel See Brown Ink on the colour wheel
All matches: Rhinox Hide equivalents · Brown Ink equivalents