Carroburg Crimson vs Magenta Wash

How close are they?

ΔE 19.8, loose: different enough that you should pick on purpose. Magenta Wash is a little lighter, much more saturated than Carroburg Crimson.

Can I use Magenta Wash instead of Carroburg Crimson?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Magenta Wash is a little lighter, much more saturated than Carroburg Crimson.

Can I use Carroburg Crimson instead of Magenta Wash?

The same difference applies the other way round: Carroburg Crimson is a little darker, much 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.