ΔE 7.6, close: similar, with a visible difference side by side. Khaki Brown is more muted, cooler than Denison Tan Base.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Khaki Brown is more muted, cooler than Denison Tan Base.
The same difference applies the other way round: Denison Tan Base is more saturated, 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 Denison Tan Base on the colour wheel See Khaki Brown on the colour wheel
All matches: Denison Tan Base equivalents · Khaki Brown equivalents