Stormhost Silver vs Iridescent Silver (Fine)

How close are they?

ΔE 10.2, fair: the same colour family, but not a straight swap. Iridescent Silver (Fine) is a little darker than Stormhost Silver. They are different kinds of paint: Citadel Stormhost Silver is a metallic and Golden Iridescent Silver (Fine) is a pearl paint, so they won’t behave the same on the model even where the colour is close.

Can I use Iridescent Silver (Fine) instead of Stormhost Silver?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Iridescent Silver (Fine) is a little darker than Stormhost Silver. They are different kinds of paint.

Can I use Stormhost Silver instead of Iridescent Silver (Fine)?

The same difference applies the other way round: Stormhost Silver 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.