ΔE 19.0, loose: different enough that you should pick on purpose. Reikland Fleshshade is noticeably lighter, more saturated, cooler than Mid Brown.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Reikland Fleshshade is noticeably lighter, more saturated, cooler than Mid Brown.
The same difference applies the other way round: Mid Brown is noticeably darker, more muted, 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 Mid Brown on the colour wheel See Reikland Fleshshade on the colour wheel
All matches: Mid Brown equivalents · Reikland Fleshshade equivalents