ΔE 8.7, close: similar, with a visible difference side by side. Dark Flesh is a little darker than Space Yellow.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Dark Flesh is a little darker than Space Yellow.
The same difference applies the other way round: Space 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 Space Yellow on the colour wheel See Dark Flesh on the colour wheel
All matches: Space Yellow equivalents · Dark Flesh equivalents