ΔE 20.6, loose: different enough that you should pick on purpose. Wasteland Brown is a little darker, warmer than Toad Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Wasteland Brown is a little darker, warmer than Toad Green.
The same difference applies the other way round: Toad Green is a little lighter, 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 Toad Green on the colour wheel See Wasteland Brown on the colour wheel
All matches: Toad Green equivalents · Wasteland Brown equivalents