ΔE 10.5, fair: the same colour family, but not a straight swap. Deck Tan is a little lighter, more muted, warmer than Tomb King Tan.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Deck Tan is a little lighter, more muted, warmer than Tomb King Tan.
The same difference applies the other way round: Tomb King Tan is a little darker, more saturated, 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 Tomb King Tan on the colour wheel See Deck Tan on the colour wheel
All matches: Tomb King Tan equivalents · Deck Tan equivalents