ΔE 12.2, fair: the same colour family, but not a straight swap. Old Rose is a little lighter, cooler than Fired Clay.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Old Rose is a little lighter, cooler than Fired Clay.
The same difference applies the other way round: Fired Clay is a little darker, 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 Fired Clay on the colour wheel See Old Rose on the colour wheel
All matches: Fired Clay equivalents · Old Rose equivalents