ΔE 13.4, fair: the same colour family, but not a straight swap. Plaguebearer Flesh is noticeably darker, warmer than Pallid Bone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Plaguebearer Flesh is noticeably darker, warmer than Pallid Bone.
The same difference applies the other way round: Pallid Bone is noticeably lighter, cooler.
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 Pallid Bone on the colour wheel See Plaguebearer Flesh on the colour wheel
All matches: Pallid Bone equivalents · Plaguebearer Flesh equivalents