Titan Buff vs Ice Yellow

How close are they?

ΔE 9.3, close: similar, with a visible difference side by side. Ice Yellow is a little lighter, more saturated than Titan Buff.

Can I use Ice Yellow instead of Titan Buff?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Ice Yellow is a little lighter, more saturated than Titan Buff.

Can I use Titan Buff instead of Ice Yellow?

The same difference applies the other way round: Titan Buff is a little darker, more muted.

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.