ΔE 13.0, fair: the same colour family, but not a straight swap. Phalanx Yellow is much more saturated than Golden Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Phalanx Yellow is much more saturated than Golden Yellow.
The same difference applies the other way round: Golden Yellow is much 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 Golden Yellow on the colour wheel See Phalanx Yellow on the colour wheel
All matches: Golden Yellow equivalents · Phalanx Yellow equivalents