ΔE 20.3, loose: different enough that you should pick on purpose. Drain Life is a little lighter, much more saturated than Bony Matter.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Drain Life is a little lighter, much more saturated than Bony Matter.
The same difference applies the other way round: Bony Matter is a little darker, 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 Drain Life on the colour wheel
All matches: Bony Matter equivalents · Drain Life equivalents