Morghast Bone vs Beast Hide

How close are they?

ΔE 16.3, loose: different enough that you should pick on purpose. Beast Hide is noticeably darker, more saturated, warmer than Morghast Bone.

Can I use Beast Hide instead of Morghast Bone?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Beast Hide is noticeably darker, more saturated, warmer than Morghast Bone.

Can I use Morghast Bone instead of Beast Hide?

The same difference applies the other way round: Morghast Bone is noticeably lighter, 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.