Warm Skin Tone vs Brown Wash

How close are they?

ΔE 19.2, loose: different enough that you should pick on purpose. Brown Wash is noticeably darker, more muted than Warm Skin Tone.

Can I use Brown Wash instead of Warm Skin Tone?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Brown Wash is noticeably darker, more muted than Warm Skin Tone.

Can I use Warm Skin Tone instead of Brown Wash?

The same difference applies the other way round: Warm Skin Tone is noticeably lighter, more saturated.

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.