ΔE 12.4, fair: the same colour family, but not a straight swap. Mephiston Red is a little darker, more muted than Dragon Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Mephiston Red is a little darker, more muted than Dragon Red.
The same difference applies the other way round: Dragon Red is a little lighter, 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 Dragon Red on the colour wheel See Mephiston Red on the colour wheel
All matches: Dragon Red equivalents · Mephiston Red equivalents