Soulblight Grey vs Smoke Grey Wash

How close are they?

ΔE 30.5, loose: different enough that you should pick on purpose. Smoke Grey Wash is noticeably lighter than Soulblight Grey.

✓ Two Thin Coats comparison chart lists these two as equivalents.

Can I use Smoke Grey Wash instead of Soulblight Grey?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 30). Smoke Grey Wash is noticeably lighter than Soulblight Grey.

Can I use Soulblight Grey instead of Smoke Grey Wash?

The same difference applies the other way round: Soulblight Grey is noticeably darker.

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.