ΔE 7.7, close: similar, with a visible difference side by side. Prairie Ochre is a little darker than IDF Early Sand Yellow.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Prairie Ochre is a little darker than IDF Early Sand Yellow.
The same difference applies the other way round: IDF Early Sand Yellow is a little lighter.
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 IDF Early Sand Yellow on the colour wheel See Prairie Ochre on the colour wheel
All matches: IDF Early Sand Yellow equivalents · Prairie Ochre equivalents