Talisman Purple vs Old Rose

How close are they?

ΔE 21.9, loose: different enough that you should pick on purpose. Old Rose is noticeably darker, warmer than Talisman Purple.

Can I use Old Rose instead of Talisman Purple?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Old Rose is noticeably darker, warmer than Talisman Purple.

Can I use Talisman Purple instead of Old Rose?

The same difference applies the other way round: Talisman Purple is noticeably lighter, 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.