Dark Blue Tone vs Drakenhof Nightshade

How close are they?

ΔE 8.2, close: similar, with a visible difference side by side. Drakenhof Nightshade is a little lighter, more saturated than Dark Blue Tone.

✓ Army Painter Fanatic conversion chart lists these two as equivalents.

Can I use Drakenhof Nightshade instead of Dark Blue Tone?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Drakenhof Nightshade is a little lighter, more saturated than Dark Blue Tone.

Can I use Dark Blue Tone instead of Drakenhof Nightshade?

The same difference applies the other way round: Dark Blue Tone is a little darker, 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.