ΔE 12.2, fair: the same colour family, but not a straight swap. IDF Blue is noticeably lighter, cooler than Military Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). IDF Blue is noticeably lighter, cooler than Military Blue.
The same difference applies the other way round: Military Blue is noticeably 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.
See Military Blue on the colour wheel See IDF Blue on the colour wheel
All matches: Military Blue equivalents · IDF Blue equivalents