Iron Warriors vs Black Ice

How close are they?

ΔE 13.5, fair: the same colour family, but not a straight swap. Black Ice is a little darker than Iron Warriors.

Can I use Black Ice instead of Iron Warriors?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Black Ice is a little darker than Iron Warriors.

Can I use Iron Warriors instead of Black Ice?

The same difference applies the other way round: Iron Warriors 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.