ΔE 13.7, fair: the same colour family, but not a straight swap. Ivory RLM05 is cooler than Sun-bleached Bone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Ivory RLM05 is cooler than Sun-bleached Bone.
The same difference applies the other way round: Sun-bleached Bone is 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 Sun-bleached Bone on the colour wheel See Ivory RLM05 on the colour wheel
All matches: Sun-bleached Bone equivalents · Ivory RLM05 equivalents