Soulblight Grey vs Aztec Turquoise Wash

How close are they?

ΔE 9.5, close: similar, with a visible difference side by side. Aztec Turquoise Wash is a little lighter, more saturated than Soulblight Grey.

Can I use Aztec Turquoise Wash instead of Soulblight Grey?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Aztec Turquoise Wash is a little lighter, more saturated than Soulblight Grey.

Can I use Soulblight Grey instead of Aztec Turquoise Wash?

The same difference applies the other way round: Soulblight Grey is a little darker, more muted.

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.