Eldandil Violet vs Dark Prussian Blue

How close are they?

ΔE 13.7, fair: the same colour family, but not a straight swap. Dark Prussian Blue is a little darker, more muted than Eldandil Violet.

Can I use Dark Prussian Blue instead of Eldandil Violet?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Dark Prussian Blue is a little darker, more muted than Eldandil Violet.

Can I use Eldandil Violet instead of Dark Prussian Blue?

The same difference applies the other way round: Eldandil Violet 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.