Mortarion Grime vs Aztec Turquoise Wash

How close are they?

ΔE 31.0, loose: different enough that you should pick on purpose. Aztec Turquoise Wash is noticeably lighter, more muted than Mortarion Grime.

Can I use Aztec Turquoise Wash instead of Mortarion Grime?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 31). Aztec Turquoise Wash is noticeably lighter, more muted than Mortarion Grime.

Can I use Mortarion Grime instead of Aztec Turquoise Wash?

The same difference applies the other way round: Mortarion Grime is noticeably darker, more saturated.

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.