Rucksack Tan vs Buff

How close are they?

ΔE 9.6, close: similar, with a visible difference side by side. Buff is a little lighter than Rucksack Tan.

Can I use Buff instead of Rucksack Tan?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Buff is a little lighter than Rucksack Tan.

Can I use Rucksack Tan instead of Buff?

The same difference applies the other way round: Rucksack Tan is a little darker.

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.