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