ΔE 12.5, fair: the same colour family, but not a straight swap. Arctic Blue (Metal.) is noticeably lighter than Cold Steel.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Arctic Blue (Metal.) is noticeably lighter than Cold Steel.
The same difference applies the other way round: Cold Steel is noticeably darker.
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 Cold Steel on the colour wheel See Arctic Blue (Metal.) on the colour wheel
All matches: Cold Steel equivalents · Arctic Blue (Metal.) equivalents