ΔE 9.1, close: similar, with a visible difference side by side. German Orange is a little darker, cooler than Red Flesh.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). German Orange is a little darker, cooler than Red Flesh.
The same difference applies the other way round: Red Flesh is a little lighter, warmer.
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 Red Flesh on the colour wheel See German Orange on the colour wheel
All matches: Red Flesh equivalents · German Orange equivalents