ΔE 26.6, loose: different enough that you should pick on purpose. Aggaros Dunes is noticeably darker, much more saturated, warmer than Pallid Bone.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 27). Aggaros Dunes is noticeably darker, much more saturated, warmer than Pallid Bone.
The same difference applies the other way round: Pallid Bone is noticeably lighter, much more muted, 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 Pallid Bone on the colour wheel See Aggaros Dunes on the colour wheel
All matches: Pallid Bone equivalents · Aggaros Dunes equivalents