ΔE 14.7, fair: the same colour family, but not a straight swap. Tan Earth is noticeably lighter, warmer than Yellow Oxide.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Tan Earth is noticeably lighter, warmer than Yellow Oxide.
The same difference applies the other way round: Yellow Oxide is noticeably darker, 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 Yellow Oxide on the colour wheel See Tan Earth on the colour wheel
All matches: Yellow Oxide equivalents · Tan Earth equivalents