IJN J3 Hai-iro (Grey) vs AMT-1 Lt. Grey. Brown

How close are they?

ΔE 6.8, close: similar, with a visible difference side by side. AMT-1 Lt. Grey. Brown is a little darker than IJN J3 Hai-iro (Grey).

Can I use AMT-1 Lt. Grey. Brown instead of IJN J3 Hai-iro (Grey)?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). AMT-1 Lt. Grey. Brown is a little darker than IJN J3 Hai-iro (Grey).

Can I use IJN J3 Hai-iro (Grey) instead of AMT-1 Lt. Grey. Brown?

The same difference applies the other way round: IJN J3 Hai-iro (Grey) 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.