ΔE 8.1, close: similar, with a visible difference side by side. US Earth Yellow is more saturated, warmer than Medium Soil.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). US Earth Yellow is more saturated, warmer than Medium Soil.
The same difference applies the other way round: Medium Soil is more muted, 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 Medium Soil on the colour wheel See US Earth Yellow on the colour wheel
All matches: Medium Soil equivalents · US Earth Yellow equivalents