ΔE 13.1, fair: the same colour family, but not a straight swap. Leather Brown is a little darker, more saturated, warmer than Barren Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Leather Brown is a little darker, more saturated, warmer than Barren Yellow.
The same difference applies the other way round: Barren Yellow is a little lighter, more muted, cooler.
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.
See Barren Yellow on the colour wheel See Leather Brown on the colour wheel
All matches: Barren Yellow equivalents · Leather Brown equivalents