ΔE 16.0, loose: different enough that you should pick on purpose. Ivory Light is a little lighter, much more muted than Ivory White.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Ivory Light is a little lighter, much more muted than Ivory White.
The same difference applies the other way round: Ivory White is a little darker, much more saturated.
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 Ivory White on the colour wheel See Ivory Light on the colour wheel
All matches: Ivory White equivalents · Ivory Light equivalents