ΔE 22.4, loose: different enough that you should pick on purpose. Pure Filth is noticeably darker, much more muted than Light DAK Sand.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Pure Filth is noticeably darker, much more muted than Light DAK Sand.
The same difference applies the other way round: Light DAK Sand is noticeably lighter, much 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.
See Light DAK Sand on the colour wheel See Pure Filth on the colour wheel
All matches: Light DAK Sand equivalents · Pure Filth equivalents