ΔE 9.5, close: similar, with a visible difference side by side. Cadmium Red Medium Hue is a little darker, more saturated than Molten Lava.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Cadmium Red Medium Hue is a little darker, more saturated than Molten Lava.
The same difference applies the other way round: Molten Lava is a little lighter, more muted.
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 Molten Lava on the colour wheel See Cadmium Red Medium Hue on the colour wheel
All matches: Molten Lava equivalents · Cadmium Red Medium Hue equivalents