JASDF Deep Ocean Blue vs RLM 70 Black Green

How close are they?

ΔE 7.3, close: similar, with a visible difference side by side. RLM 70 Black Green is a little lighter, cooler than JASDF Deep Ocean Blue.

Can I use RLM 70 Black Green instead of JASDF Deep Ocean Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). RLM 70 Black Green is a little lighter, cooler than JASDF Deep Ocean Blue.

Can I use JASDF Deep Ocean Blue instead of RLM 70 Black Green?

The same difference applies the other way round: JASDF Deep Ocean Blue is a little darker, warmer.

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.