ΔE 9.5, close: similar, with a visible difference side by side. Dk Mediterr. Blue is a little darker, more saturated, warmer than RLM 83.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Dk Mediterr. Blue is a little darker, more saturated, warmer than RLM 83.
The same difference applies the other way round: RLM 83 is a little lighter, more muted, cooler.
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.
See RLM 83 on the colour wheel See Dk Mediterr. Blue on the colour wheel
All matches: RLM 83 equivalents · Dk Mediterr. Blue equivalents