Nihilakh Oxide vs Cobalt Turquoise

How close are they?

ΔE 13.5, fair: the same colour family, but not a straight swap. Cobalt Turquoise is noticeably darker, more muted, cooler than Nihilakh Oxide. They are different kinds of paint: Citadel Nihilakh Oxide is a technical paint or medium and Golden Cobalt Turquoise is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.

Can I use Cobalt Turquoise instead of Nihilakh Oxide?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Cobalt Turquoise is noticeably darker, more muted, cooler than Nihilakh Oxide. They are different kinds of paint.

Can I use Nihilakh Oxide instead of Cobalt Turquoise?

The same difference applies the other way round: Nihilakh Oxide is noticeably lighter, more saturated, 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.