Sylvaneth Bark vs Bootstrap Leather

How close are they?

ΔE 16.6, loose: different enough that you should pick on purpose. Bootstrap Leather is a little lighter, much more saturated than Sylvaneth Bark.

Can I use Bootstrap Leather instead of Sylvaneth Bark?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Bootstrap Leather is a little lighter, much more saturated than Sylvaneth Bark.

Can I use Sylvaneth Bark instead of Bootstrap Leather?

The same difference applies the other way round: Sylvaneth Bark 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.