ΔE 13.2, fair: the same colour family, but not a straight swap. Night Scales is more muted than Cobalt Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Night Scales is more muted than Cobalt Blue.
The same difference applies the other way round: Cobalt Blue is more saturated.
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 Cobalt Blue on the colour wheel See Night Scales on the colour wheel
All matches: Cobalt Blue equivalents · Night Scales equivalents