ΔE 12.7, fair: the same colour family, but not a straight swap. Phalanx Yellow is a little darker, warmer than Screaming Sun.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Phalanx Yellow is a little darker, warmer than Screaming Sun.
The same difference applies the other way round: Screaming Sun is a little lighter, cooler.
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 Sun on the colour wheel See Phalanx Yellow on the colour wheel
All matches: Screaming Sun equivalents · Phalanx Yellow equivalents