ΔE 9.8, close: similar, with a visible difference side by side. Arcane Gold is a little darker, warmer than Iridescent Bronze (Fine). They are different kinds of paint: Golden Iridescent Bronze (Fine) is a pearl paint and Vallejo Arcane Gold is a metallic, 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 10). Arcane Gold is a little darker, warmer than Iridescent Bronze (Fine). They are different kinds of paint.
The same difference applies the other way round: Iridescent Bronze (Fine) is a little lighter, 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.
See Iridescent Bronze (Fine) on the colour wheel See Arcane Gold on the colour wheel
All matches: Iridescent Bronze (Fine) equivalents · Arcane Gold equivalents