ΔE 12.8, fair: the same colour family, but not a straight swap. Stormfang is a little darker, cooler than Blue FS 35190.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Stormfang is a little darker, cooler than Blue FS 35190.
The same difference applies the other way round: Blue FS 35190 is a little lighter, 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 Blue FS 35190 on the colour wheel See Stormfang on the colour wheel
All matches: Blue FS 35190 equivalents · Stormfang equivalents