What is the difference between Ultramar Blue and Blue?

ΔE 10 (close). Blue is more muted, cooler. Swatch colours are estimates.

Ultramar Blue vs Blue

Ultramar Blue

Brand: Green Stuff World
Range: Acrylic Colors
Code: 3224
Type: an opaque base/layer paint
Swatch: #353568 (estimate)

Blue

Brand: Vallejo
Range: Model Air
Code: 71.004
Type: an opaque base/layer paint
Swatch: #303f68 (estimate)

How close are they?

ΔE 9.5, close: similar, with a visible difference side by side. Blue is more muted, cooler than Ultramar Blue.

Can I use Blue instead of Ultramar Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Blue is more muted, cooler than Ultramar Blue.

Can I use Ultramar Blue instead of Blue?

The same difference applies the other way round: Ultramar Blue is more saturated, warmer.

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 Ultramar Blue on the colour wheel See Blue on the colour wheel

Other Vallejo paints close to Ultramar Blue

Ultramar Blue vs Dark Blue (70.930)Model Color · ΔE 5, very close · closer than Blue
Ultramar Blue vs French Blue (71.088)Model Air · ΔE 10, fair
Ultramar Blue vs Flat Blue (70.962)Model Color · ΔE 11, fair

Other Green Stuff World paints close to Blue

Blue vs Prussian Blue (3223)Acrylic Colors · ΔE 8, close · closer than Ultramar Blue
Blue vs Mirage Blue (1840)Acrylic Colors · ΔE 10, close
Blue vs Blue Base (4115)Opaque Colors · ΔE 11, fair

All matches: Ultramar Blue equivalents · Blue equivalents