ΔE 12.6, fair: the same colour family, but not a straight swap. Wasteland Soil is much more saturated than Space Magenta.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Wasteland Soil is much more saturated than Space Magenta.
The same difference applies the other way round: Space Magenta is much more muted.
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 Space Magenta on the colour wheel See Wasteland Soil on the colour wheel
All matches: Space Magenta equivalents · Wasteland Soil equivalents