Magenta Tone vs Druchii Violet

How close are they?

ΔE 24.0, loose: different enough that you should pick on purpose. Druchii Violet is a little darker, much more muted, cooler than Magenta Tone.

Can I use Druchii Violet instead of Magenta Tone?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Druchii Violet is a little darker, much more muted, cooler than Magenta Tone.

Can I use Magenta Tone instead of Druchii Violet?

The same difference applies the other way round: Magenta Tone is a little lighter, much more saturated, warmer.

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.