Fairy Blood vs Mystic Blue

How close are they?

ΔE 13.0, fair: the same colour family, but not a straight swap. Mystic Blue is much more saturated, cooler than Fairy Blood.

Can I use Mystic Blue instead of Fairy Blood?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Mystic Blue is much more saturated, cooler than Fairy Blood.

Can I use Fairy Blood instead of Mystic Blue?

The same difference applies the other way round: Fairy Blood is much more muted, warmer.

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.