What is the difference between Light Sea Gray and Light Blue RLM78?

ΔE 7 (close). Light Blue RLM78 is warmer. Swatch colours are estimates.

Light Sea Gray vs Light Blue RLM78

Light Sea Gray

Brand: Tamiya
Range: XF Flat Acrylic
Code: XF-25
Type: an opaque base/layer paint
Swatch: #738f9b (estimate)

Light Blue RLM78

Brand: Vallejo
Range: Model Air
Code: 71.101
Type: an opaque base/layer paint
Swatch: #759090 (estimate)

How close are they?

ΔE 6.9, close: similar, with a visible difference side by side. Light Blue RLM78 is warmer than Light Sea Gray.

Can I use Light Blue RLM78 instead of Light Sea Gray?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Light Blue RLM78 is warmer than Light Sea Gray.

Can I use Light Sea Gray instead of Light Blue RLM78?

The same difference applies the other way round: Light Sea Gray is 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.

See Light Sea Gray on the colour wheel See Light Blue RLM78 on the colour wheel

Other Vallejo paints close to Light Sea Gray

Light Sea Gray vs Dark Ghost Gray (71.120)Model Air · ΔE 4, very close · closer than Light Blue RLM78
Light Sea Gray vs Pale Blue (71.008)Model Air · ΔE 5, very close · closer than Light Blue RLM78
Light Sea Gray vs AMT-7 Greyish Blue (71.318)Model Air · ΔE 7, close · closer than Light Blue RLM78

Other Tamiya paints close to Light Blue RLM78

Light Blue RLM78 vs Neutral Gray (USAF) (AS-7)AS Spray (aircraft) · ΔE 6, close · closer than Light Sea Gray
Light Blue RLM78 vs Gunship Gray 2 (AS-27)AS Spray (aircraft) · ΔE 7, close
Light Blue RLM78 vs Medium Gray (AS-28)AS Spray (aircraft) · ΔE 7, close

All matches: Light Sea Gray equivalents · Light Blue RLM78 equivalents