ΔE 10.4, fair: the same colour family, but not a straight swap. Stormwolf Blue is more muted, cooler than Runic Cobalt.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Stormwolf Blue is more muted, cooler than Runic Cobalt.
The same difference applies the other way round: Runic Cobalt is more saturated, warmer.
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 Runic Cobalt on the colour wheel See Stormwolf Blue on the colour wheel
All matches: Runic Cobalt equivalents · Stormwolf Blue equivalents