Fairy Blood vs Omega Blue

How close are they?

ΔE 10.9, fair: the same colour family, but not a straight swap. Omega Blue is noticeably darker than Fairy Blood.

Can I use Omega Blue instead of Fairy Blood?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Omega Blue is noticeably darker than Fairy Blood.

Can I use Fairy Blood instead of Omega Blue?

The same difference applies the other way round: Fairy Blood is noticeably 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.