Altdorf Guard Blue vs Cygnar Blue Base

How close are they?

ΔE 14.6, fair: the same colour family, but not a straight swap. Cygnar Blue Base is much more saturated, warmer than Altdorf Guard Blue.

Can I use Cygnar Blue Base instead of Altdorf Guard Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Cygnar Blue Base is much more saturated, warmer than Altdorf Guard Blue.

Can I use Altdorf Guard Blue instead of Cygnar Blue Base?

The same difference applies the other way round: Altdorf Guard Blue is much more muted, cooler.

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.