Yellow Oxide vs US Earth Red

How close are they?

ΔE 9.6, close: similar, with a visible difference side by side. US Earth Red is more muted, warmer than Yellow Oxide.

Can I use US Earth Red instead of Yellow Oxide?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). US Earth Red is more muted, warmer than Yellow Oxide.

Can I use Yellow Oxide instead of US Earth Red?

The same difference applies the other way round: Yellow Oxide is more saturated, 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.