ΔE 11.0, fair: the same colour family, but not a straight swap. RLM 79 Sandy Brown is a little darker, more saturated than Charred Bone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). RLM 79 Sandy Brown is a little darker, more saturated than Charred Bone.
The same difference applies the other way round: Charred Bone is a little lighter, 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 Charred Bone on the colour wheel See RLM 79 Sandy Brown on the colour wheel
All matches: Charred Bone equivalents · RLM 79 Sandy Brown equivalents