Cadmium Red Medium Hue vs Light Red

How close are they?

ΔE 8.1, close: similar, with a visible difference side by side. Light Red is a little lighter, more muted than Cadmium Red Medium Hue.

Can I use Light Red instead of Cadmium Red Medium Hue?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Light Red is a little lighter, more muted than Cadmium Red Medium Hue.

Can I use Cadmium Red Medium Hue instead of Light Red?

The same difference applies the other way round: Cadmium Red Medium Hue 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.