ΔE 15.0, fair: the same colour family, but not a straight swap. Snakebite Leather is a little darker, much more saturated than Bony Matter.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Snakebite Leather is a little darker, much more saturated than Bony Matter.
The same difference applies the other way round: Bony Matter is a little lighter, much more muted.
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 Snakebite Leather on the colour wheel
All matches: Bony Matter equivalents · Snakebite Leather equivalents