ΔE 19.5, loose: different enough that you should pick on purpose. Hansa Yellow Light is a little lighter, more saturated, cooler than Life Vest Yellow.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Hansa Yellow Light 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 Light on the colour wheel
All matches: Life Vest Yellow equivalents · Hansa Yellow Light equivalents