Sanguine Base vs Dark Flesh Tone

How close are they?

ΔE 16.4, loose: different enough that you should pick on purpose. Dark Flesh Tone is noticeably lighter, more saturated than Sanguine Base.

Can I use Dark Flesh Tone instead of Sanguine Base?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Dark Flesh Tone is noticeably lighter, more saturated than Sanguine Base.

Can I use Sanguine Base instead of Dark Flesh Tone?

The same difference applies the other way round: Sanguine Base is noticeably darker, more muted.

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.