What is the difference between Blue Black and Prussian Blue?

ΔE 16 (loose). Prussian Blue is noticeably lighter, more saturated, warmer. Swatch colours are estimates.

Blue Black vs Prussian Blue

Blue Black

Brand: Pro Acryl
Range: Standard / Signature / AMP
Code: 056
Type: an opaque base/layer paint
Swatch: #1f2a3a (estimate)

Prussian Blue

Brand: Vallejo
Range: Model Color
Code: 70.965
Type: an opaque base/layer paint
Swatch: #354364 (estimate)

How close are they?

ΔE 15.6, loose: different enough that you should pick on purpose. Prussian Blue is noticeably lighter, more saturated, warmer than Blue Black.

Can I use Prussian Blue instead of Blue Black?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Prussian Blue is noticeably lighter, more saturated, warmer than Blue Black.

Can I use Blue Black instead of Prussian Blue?

The same difference applies the other way round: Blue Black is noticeably darker, more muted, 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 Blue Black on the colour wheel See Prussian Blue on the colour wheel

Other Vallejo paints close to Blue Black

Blue Black vs Signal Blue (71.091)Model Air · ΔE 2, very close · closer than Prussian Blue
Blue Black vs Dark Sea Blue (70.898)Model Color · ΔE 2, very close · closer than Prussian Blue
Blue Black vs Glossy Sea Blue (71.300)Model Air · ΔE 7, close · closer than Prussian Blue

Other Pro Acryl paints close to Prussian Blue

Prussian Blue vs Dark Grey Blue (014)Standard / Signature / AMP · ΔE 6, close · closer than Blue Black
Prussian Blue vs Payne’s Grey (E013)Expert Acrylics · ΔE 9, close · closer than Blue Black
Prussian Blue vs Payne’s Grey (S02)Standard / Signature / AMP · ΔE 10, close · closer than Blue Black

All matches: Blue Black equivalents · Prussian Blue equivalents