In Sombere marine, the viewer is met with a dark and moody seascape. The colors are predominantly deep blues and grays, creating a somber atmosphere. Abstract forms suggest waves and turbulent waters, while the horizon is barely visible.

The overall effect is one of introspection and contemplation of the sea's power. The painting is executed in oil on canvas, a medium that allows for rich texture and depth. The brushwork is expressive, with thick strokes that enhance the emotional weight of the scene. The dimensions are approximately 80 x 100 cm, making it a substantial piece that commands attention.

The use of color and form aligns with the expressionist style, emphasizing emotion over realism. Constant Permeke was a key figure in Belgian expressionism, known for his bold use of color and form. Sombere marine reflects his fascination with the sea and its emotional resonance. Interestingly, this work was created during a period when Permeke was exploring themes of nature and human emotion.

His marine paintings often convey a sense of solitude and introspection, making them significant in his oeuvre.