ΔE 9.2, close: similar, with a visible difference side by side. Sterling Silver is a little darker, more muted than Iron Warriors.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Sterling Silver is a little darker, more muted than Iron Warriors.
The same difference applies the other way round: Iron Warriors is a little lighter, more saturated.
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 Iron Warriors on the colour wheel See Sterling Silver on the colour wheel
All matches: Iron Warriors equivalents · Sterling Silver equivalents