ΔE 7.8, close: similar, with a visible difference side by side. White is a little lighter, more muted than Ivory Light.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). White is a little lighter, more muted than Ivory Light.
The same difference applies the other way round: Ivory Light is a little darker, 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 Light on the colour wheel See White on the colour wheel
All matches: Ivory Light equivalents · White equivalents