ΔE 11.2, fair: the same colour family, but not a straight swap. Red RLM23 is a little darker, more saturated than Devil Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Red RLM23 is a little darker, more saturated than Devil Red.
The same difference applies the other way round: Devil Red is a little lighter, 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 Devil Red on the colour wheel See Red RLM23 on the colour wheel
All matches: Devil Red equivalents · Red RLM23 equivalents