ΔE 9.1, close: similar, with a visible difference side by side. Transparent Brown Iron Oxide is a little lighter, more muted than Light Tone. They are different kinds of paint: Army Painter Light Tone is a wash/shade and Golden Transparent Brown Iron Oxide is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Transparent Brown Iron Oxide is a little lighter, more muted than Light Tone. They are different kinds of paint.
The same difference applies the other way round: Light Tone 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 Light Tone on the colour wheel See Transparent Brown Iron Oxide on the colour wheel
All matches: Light Tone equivalents · Transparent Brown Iron Oxide equivalents