ΔE 8.0, close: similar, with a visible difference side by side. Aged White is a little lighter, more muted, warmer than Ushabti Bone.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Aged White is a little lighter, more muted, warmer than Ushabti Bone.
The same difference applies the other way round: Ushabti Bone is a little darker, more saturated, 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.
See Ushabti Bone on the colour wheel See Aged White on the colour wheel
All matches: Ushabti Bone equivalents · Aged White equivalents