Russian Sand 7K vs Hobgrot Hide

How close are they?

ΔE 7.6, close: similar, with a visible difference side by side. Hobgrot Hide is more muted, warmer than Russian Sand 7K.

Can I use Hobgrot Hide instead of Russian Sand 7K?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Hobgrot Hide is more muted, warmer than Russian Sand 7K.

Can I use Russian Sand 7K instead of Hobgrot Hide?

The same difference applies the other way round: Russian Sand 7K 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.