ΔE 7.0, close: similar, with a visible difference side by side. Desert Brown is a little lighter, more saturated than WWI French Milky Coffee.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Desert Brown is a little lighter, more saturated than WWI French Milky Coffee.
The same difference applies the other way round: WWI French Milky Coffee is a little darker, 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 WWI French Milky Coffee on the colour wheel See Desert Brown on the colour wheel
All matches: WWI French Milky Coffee equivalents · Desert Brown equivalents