ΔE 7.1, close: similar, with a visible difference side by side. Dark Flesh Tone is cooler than Iridescent Copper (Fine). They are different kinds of paint: Golden Iridescent Copper (Fine) is a pearl paint and Vallejo Dark Flesh Tone is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Dark Flesh Tone is cooler than Iridescent Copper (Fine). They are different kinds of paint.
The same difference applies the other way round: Iridescent Copper (Fine) is 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 Iridescent Copper (Fine) on the colour wheel See Dark Flesh Tone on the colour wheel
All matches: Iridescent Copper (Fine) equivalents · Dark Flesh Tone equivalents