ΔE 8.6, close: similar, with a visible difference side by side. Ivory is a little lighter, warmer than Titan Green Pale.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Ivory is a little lighter, warmer than Titan Green Pale.
The same difference applies the other way round: Titan Green Pale is a little darker, cooler.
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 Titan Green Pale on the colour wheel See Ivory on the colour wheel
All matches: Titan Green Pale equivalents · Ivory equivalents