ΔE 14.1, fair: the same colour family, but not a straight swap. Blue Steel is a little lighter, much more saturated than Iron Hands Steel.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Blue Steel is a little lighter, much more saturated than Iron Hands Steel.
The same difference applies the other way round: Iron Hands Steel is a little darker, much 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 Iron Hands Steel on the colour wheel See Blue Steel on the colour wheel
All matches: Iron Hands Steel equivalents · Blue Steel equivalents