ΔE 8.7, close: similar, with a visible difference side by side. Transparent Orange is a little lighter than Orange Tone. They are different kinds of paint: Army Painter Orange Tone is a wash/shade and Pro Acryl Transparent Orange 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 Orange is a little lighter than Orange Tone. They are different kinds of paint.
The same difference applies the other way round: Orange Tone is a little darker.
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 Orange Tone on the colour wheel See Transparent Orange on the colour wheel
All matches: Orange Tone equivalents · Transparent Orange equivalents