ΔE 13.1, fair: the same colour family, but not a straight swap. 'Jack Bone is noticeably darker, more muted, cooler than Arid Earth.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). 'Jack Bone is noticeably darker, more muted, cooler than Arid Earth.
The same difference applies the other way round: Arid Earth is noticeably lighter, 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 Arid Earth on the colour wheel See 'Jack Bone on the colour wheel
All matches: Arid Earth equivalents · 'Jack Bone equivalents