ΔE 6.4, close: similar, with a visible difference side by side. Silver is a little darker than Iridescent Stainless Steel (Fine). They are different kinds of paint: Golden Iridescent Stainless Steel (Fine) is a pearl paint and Vallejo Silver 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 6). Silver is a little darker than Iridescent Stainless Steel (Fine). They are different kinds of paint.
The same difference applies the other way round: Iridescent Stainless Steel (Fine) 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 Iridescent Stainless Steel (Fine) on the colour wheel See Silver on the colour wheel
All matches: Iridescent Stainless Steel (Fine) equivalents · Silver equivalents