Basilisk Brown vs Panzer Yellow

How close are they?

ΔE 6.1, close: similar, with a visible difference side by side. Panzer Yellow is more saturated than Basilisk Brown.

Can I use Panzer Yellow instead of Basilisk Brown?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Panzer Yellow is more saturated than Basilisk Brown.

Can I use Basilisk Brown instead of Panzer Yellow?

The same difference applies the other way round: Basilisk Brown is more muted.

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.