ΔE 8.6, close: similar, with a visible difference side by side. US Earth Red is a little lighter, warmer than Ashroot.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). US Earth Red is a little lighter, warmer than Ashroot.
The same difference applies the other way round: Ashroot is a little darker, 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 Ashroot on the colour wheel See US Earth Red on the colour wheel
All matches: Ashroot equivalents · US Earth Red equivalents