Hellblau RLM 78 vs Light Green Blue

How close are they?

ΔE 9.2, close: similar, with a visible difference side by side. Light Green Blue is a little darker, more muted, warmer than Hellblau RLM 78.

✓ AMMO ATOM user guide chart lists these two as equivalents.

Can I use Light Green Blue instead of Hellblau RLM 78?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Light Green Blue is a little darker, more muted, warmer than Hellblau RLM 78.

Can I use Hellblau RLM 78 instead of Light Green Blue?

The same difference applies the other way round: Hellblau RLM 78 is a little lighter, more saturated, cooler.

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.