ΔE 11.5, fair: the same colour family, but not a straight swap. Character Yellow is a little darker, more saturated than Flickering Flame.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Character Yellow is a little darker, more saturated than Flickering Flame.
The same difference applies the other way round: Flickering Flame 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 Flickering Flame on the colour wheel See Character Yellow on the colour wheel
All matches: Flickering Flame equivalents · Character Yellow equivalents