ΔE 9.7, close: similar, with a visible difference side by side. Cement Grey is a little lighter, more saturated than Mid Grey FS-36357.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Cement Grey is a little lighter, more saturated than Mid Grey FS-36357.
The same difference applies the other way round: Mid Grey FS-36357 is a little darker, more muted.
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 Mid Grey FS-36357 on the colour wheel See Cement Grey on the colour wheel
All matches: Mid Grey FS-36357 equivalents · Cement Grey equivalents