Black Legion vs Remove Mana

How close are they?

ΔE 16.0, loose: different enough that you should pick on purpose. Remove Mana is a little lighter, much more saturated than Black Legion.

Can I use Remove Mana instead of Black Legion?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Remove Mana is a little lighter, much more saturated than Black Legion.

Can I use Black Legion instead of Remove Mana?

The same difference applies the other way round: Black Legion 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.