Runic Cobalt vs Elfic Blue

How close are they?

ΔE 14.0, fair: the same colour family, but not a straight swap. Elfic Blue is a little lighter, much more saturated, warmer than Runic Cobalt.

Can I use Elfic Blue instead of Runic Cobalt?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Elfic Blue is a little lighter, much more saturated, warmer than Runic Cobalt.

Can I use Runic Cobalt instead of Elfic Blue?

The same difference applies the other way round: Runic Cobalt is a little darker, 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.