ΔE 10.3, fair: the same colour family, but not a straight swap. Pallid Wych Flesh is a little darker, more muted, cooler than Bleached Bone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Pallid Wych Flesh is a little darker, more muted, cooler than Bleached Bone.
The same difference applies the other way round: Bleached Bone is a little lighter, more saturated, 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 Bleached Bone on the colour wheel See Pallid Wych Flesh on the colour wheel
All matches: Bleached Bone equivalents · Pallid Wych Flesh equivalents