ΔE 10.7, fair: the same colour family, but not a straight swap. Bag of Bones is a little darker, cooler than Bony Matter.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Bag of Bones is a little darker, cooler than Bony Matter.
The same difference applies the other way round: Bony Matter is a little 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 Bony Matter on the colour wheel See Bag of Bones on the colour wheel
All matches: Bony Matter equivalents · Bag of Bones equivalents