ΔE 15.4, loose: different enough that you should pick on purpose. Aged White is a little darker, cooler than Titan Mars Pale.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Aged White is a little darker, cooler than Titan Mars Pale.
The same difference applies the other way round: Titan Mars Pale is a little lighter, 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 Titan Mars Pale on the colour wheel See Aged White on the colour wheel
All matches: Titan Mars Pale equivalents · Aged White equivalents