ΔE 12.1, fair: the same colour family, but not a straight swap. Iron Warriors is noticeably darker, more saturated than Evil Chrome.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Iron Warriors is noticeably darker, more saturated than Evil Chrome.
The same difference applies the other way round: Evil Chrome is noticeably lighter, more muted.
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 Evil Chrome on the colour wheel See Iron Warriors on the colour wheel
All matches: Evil Chrome equivalents · Iron Warriors equivalents