Leather Brown vs Deathclaw Brown

How close are they?

ΔE 15.5, loose: different enough that you should pick on purpose. Deathclaw Brown is noticeably lighter, more muted than Leather Brown.

Can I use Deathclaw Brown instead of Leather Brown?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Deathclaw Brown is noticeably lighter, more muted than Leather Brown.

Can I use Leather Brown instead of Deathclaw Brown?

The same difference applies the other way round: Leather Brown is noticeably darker, more saturated.

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.