ΔE 22.6, loose: different enough that you should pick on purpose. Buff is noticeably lighter, cooler than Meaty Ochre.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 23). Buff is noticeably lighter, cooler than Meaty Ochre.
The same difference applies the other way round: Meaty Ochre is noticeably darker, 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.
See Meaty Ochre on the colour wheel See Buff on the colour wheel
All matches: Meaty Ochre equivalents · Buff equivalents