Dark DAK Sand vs Gyzmo Fur

How close are they?

ΔE 9.6, close: similar, with a visible difference side by side. Gyzmo Fur is more muted, warmer than Dark DAK Sand.

Can I use Gyzmo Fur instead of Dark DAK Sand?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Gyzmo Fur is more muted, warmer than Dark DAK Sand.

Can I use Dark DAK Sand instead of Gyzmo Fur?

The same difference applies the other way round: Dark DAK Sand is 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.