ΔE 7.9, close: similar, with a visible difference side by side. Tan Earth is more muted than Bone Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Tan Earth is more muted than Bone Brown.
The same difference applies the other way round: Bone Brown is more saturated.
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 Bone Brown on the colour wheel See Tan Earth on the colour wheel
All matches: Bone Brown equivalents · Tan Earth equivalents