ΔE 20.5, loose: different enough that you should pick on purpose. Toxic Yellow is a little lighter, much more saturated, cooler than Khaki Bone.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Toxic Yellow is a little lighter, much more saturated, cooler than Khaki Bone.
The same difference applies the other way round: Khaki Bone is a little darker, much more muted, 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 Khaki Bone on the colour wheel See Toxic Yellow on the colour wheel
All matches: Khaki Bone equivalents · Toxic Yellow equivalents