ΔE 11.8, fair: the same colour family, but not a straight swap. Voidshield Blue is a little darker, more muted than Ducat Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Voidshield Blue is a little darker, more muted than Ducat Blue.
The same difference applies the other way round: Ducat Blue is a little lighter, 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 Ducat Blue on the colour wheel See Voidshield Blue on the colour wheel
All matches: Ducat Blue equivalents · Voidshield Blue equivalents