Dark Blue Tone vs Payne’s Grey Wash

How close are they?

ΔE 18.2, loose: different enough that you should pick on purpose. Payne’s Grey Wash is a little lighter, much more muted, cooler than Dark Blue Tone.

Can I use Payne’s Grey Wash instead of Dark Blue Tone?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Payne’s Grey Wash is a little lighter, much more muted, cooler than Dark Blue Tone.

Can I use Dark Blue Tone instead of Payne’s Grey Wash?

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