ΔE 20.8, loose: different enough that you should pick on purpose. Dark Umber is noticeably darker, more muted, warmer than Husk Brown.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Dark Umber is noticeably darker, more muted, warmer than Husk Brown.
The same difference applies the other way round: Husk Brown is noticeably lighter, more saturated, 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 Husk Brown on the colour wheel See Dark Umber on the colour wheel
All matches: Husk Brown equivalents · Dark Umber equivalents