ΔE 9.3, close: similar, with a visible difference side by side. Leather Brown is a little darker, warmer than Tallarn Sand.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Leather Brown is a little darker, warmer than Tallarn Sand.
The same difference applies the other way round: Tallarn Sand is a little 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 Tallarn Sand on the colour wheel See Leather Brown on the colour wheel
All matches: Tallarn Sand equivalents · Leather Brown equivalents