ΔE 11.3, fair: the same colour family, but not a straight swap. Titan Buff is a little lighter, more muted than Senshi Skin.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Titan Buff is a little lighter, more muted than Senshi Skin.
The same difference applies the other way round: Senshi Skin is a little darker, more saturated.
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 Senshi Skin on the colour wheel See Titan Buff on the colour wheel
All matches: Senshi Skin equivalents · Titan Buff equivalents