Light Rust vs Orange Tone

How close are they?

ΔE 11.8, fair: the same colour family, but not a straight swap. Orange Tone is noticeably darker, more muted than Light Rust. They are different kinds of paint: AMMO by Mig Light Rust is an ink, glaze or transparent paint and Army Painter Orange Tone is a wash/shade, so they won’t behave the same on the model even where the colour is close.

Can I use Orange Tone instead of Light Rust?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Orange Tone is noticeably darker, more muted than Light Rust. They are different kinds of paint.

Can I use Light Rust instead of Orange Tone?

The same difference applies the other way round: Light Rust is noticeably lighter, 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.