Light Golden Flesh vs Imp Yellow

How close are they?

ΔE 9.0, close: similar, with a visible difference side by side. Imp Yellow is more saturated than Light Golden Flesh.

Can I use Imp Yellow instead of Light Golden Flesh?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Imp Yellow is more saturated than Light Golden Flesh.

Can I use Light Golden Flesh instead of Imp Yellow?

The same difference applies the other way round: Light Golden Flesh is more muted.

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.