What is the difference between Ultramarine Blue and Marine Blue?

ΔE 15 (loose). Marine Blue is much more saturated, warmer. Swatch colours are estimates.

Ultramarine Blue vs Marine Blue

Ultramarine Blue

Brand: Army Painter
Range: Warpaints Fanatic
Type: an opaque base/layer paint
Swatch: #264587 (estimate)

Marine Blue

Brand: Green Stuff World
Range: Acrylic Colors
Code: 1792
Type: an opaque base/layer paint
Swatch: #2c388d (estimate)

How close are they?

ΔE 15.0, loose: different enough that you should pick on purpose. Marine Blue is much more saturated, warmer than Ultramarine Blue.

Can I use Marine Blue instead of Ultramarine Blue?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Marine Blue is much more saturated, warmer than Ultramarine Blue.

Can I use Ultramarine Blue instead of Marine Blue?

The same difference applies the other way round: Ultramarine Blue is much 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 Ultramarine Blue on the colour wheel See Marine Blue on the colour wheel

Other Green Stuff World paints close to Ultramarine Blue

Ultramarine Blue vs Ultramar Blue (3224)Acrylic Colors · ΔE 12, fair · closer than Marine Blue
Ultramarine Blue vs Blue Base (4115)Opaque Colors · ΔE 12, fair · closer than Marine Blue
Ultramarine Blue vs Lapislazuli (3225)Acrylic Colors · ΔE 12, fair · closer than Marine Blue

Other Army Painter paints close to Marine Blue

Marine Blue vs Ultramarine BlueWarpaints Air · ΔE 10, fair · closer than Ultramarine Blue
Marine Blue vs Alien PurpleWarpaints Air · ΔE 11, fair · closer than Ultramarine Blue
Marine Blue vs Alien PurpleWarpaints Fanatic · ΔE 13, fair · closer than Ultramarine Blue

All matches: Ultramarine Blue equivalents · Marine Blue equivalents