Leather Brown vs Gengis Khaki

How close are they?

ΔE 16.7, loose: different enough that you should pick on purpose. Gengis Khaki is a little darker, more muted, cooler than Leather Brown.

Can I use Gengis Khaki instead of Leather Brown?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Gengis Khaki is a little darker, more muted, cooler than Leather Brown.

Can I use Leather Brown instead of Gengis Khaki?

The same difference applies the other way round: Leather Brown is a little lighter, 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.