ΔE 11.7, fair: the same colour family, but not a straight swap. IDF Sand Grey is noticeably darker, cooler than Aged Bone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). IDF Sand Grey is noticeably darker, cooler than Aged Bone.
The same difference applies the other way round: Aged Bone is noticeably lighter, 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 Aged Bone on the colour wheel See IDF Sand Grey on the colour wheel
All matches: Aged Bone equivalents · IDF Sand Grey equivalents