Skink Blue vs Field Blue

How close are they?

ΔE 8.6, close: similar, with a visible difference side by side. Field Blue is a little darker than Skink Blue.

Can I use Field Blue instead of Skink Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Field Blue is a little darker than Skink Blue.

Can I use Skink Blue instead of Field Blue?

The same difference applies the other way round: Skink Blue is a little lighter.

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.