Stormfang vs Spectral Blue

How close are they?

ΔE 14.3, fair: the same colour family, but not a straight swap. Spectral Blue is a little darker, more saturated than Stormfang.

Can I use Spectral Blue instead of Stormfang?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Spectral Blue is a little darker, more saturated than Stormfang.

Can I use Stormfang instead of Spectral Blue?

The same difference applies the other way round: Stormfang is a little lighter, 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.