ΔE 13.6, fair: the same colour family, but not a straight swap. Royal Blue is much more muted, cooler than Cygnar Blue Base.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Royal Blue is much more muted, cooler than Cygnar Blue Base.
The same difference applies the other way round: Cygnar Blue Base is much more saturated, 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 Cygnar Blue Base on the colour wheel See Royal Blue on the colour wheel
All matches: Cygnar Blue Base equivalents · Royal Blue equivalents