ΔE 11.8, fair: the same colour family, but not a straight swap. USAF Light Gray is a little lighter, more muted than Aged Bone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). USAF Light Gray is a little lighter, more muted than Aged Bone.
The same difference applies the other way round: Aged Bone is a little darker, more saturated.
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 USAF Light Gray on the colour wheel
All matches: Aged Bone equivalents · USAF Light Gray equivalents