ΔE 15.2, loose: different enough that you should pick on purpose. Grey is a little lighter, more muted than Aged Bone.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Grey 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 Grey on the colour wheel
All matches: Aged Bone equivalents · Grey equivalents