ΔE 5.7, very close: most people won’t see a difference side by side. Flat Brown is a little lighter, cooler than Oxide Brown Medium.
Yes, for most jobs. Very close match (ΔE 6). Flat Brown is a little lighter, cooler than Oxide Brown Medium.
The same difference applies the other way round: Oxide Brown Medium is a little 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 Oxide Brown Medium on the colour wheel See Flat Brown on the colour wheel
All matches: Oxide Brown Medium equivalents · Flat Brown equivalents