Dark Green Blue vs Wagram Blue

How close are they?

ΔE 14.9, fair: the same colour family, but not a straight swap. Wagram Blue is a little darker than Dark Green Blue.

Can I use Wagram Blue instead of Dark Green Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Wagram Blue is a little darker than Dark Green Blue.

Can I use Dark Green Blue instead of Wagram Blue?

The same difference applies the other way round: Dark Green Blue is a little lighter.

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.