ΔE 6.2, close: similar, with a visible difference side by side. IJN Medium Grey is more muted than Cryx Bane Highlight.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). IJN Medium Grey is more muted than Cryx Bane Highlight.
The same difference applies the other way round: Cryx Bane Highlight is more saturated.
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 Cryx Bane Highlight on the colour wheel See IJN Medium Grey on the colour wheel
All matches: Cryx Bane Highlight equivalents · IJN Medium Grey equivalents