ΔE 13.5, fair: the same colour family, but not a straight swap. Stormhost Silver is noticeably lighter than Natural Steel.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Stormhost Silver is noticeably lighter than Natural Steel.
The same difference applies the other way round: Natural 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 Natural Steel on the colour wheel See Stormhost Silver on the colour wheel
All matches: Natural Steel equivalents · Stormhost Silver equivalents