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