Wallpaper - Echinoderms, Dark Blue

Our Echinoderms, Dark Blue wallpaper by RNM Arts brings a coastal marine motif into interior spaces through graphic, screenprint-inspired line work. Set against a deep, dark blue ground, the scattered composition features textured five-armed starfish alongside delicate sand dollars detailed with central star patterns. Rendered in crisp turquoise, sea green, and subtle earthy accents, the flat illustration creates a rhythmic visual depth across the surface. This made-to-measure, PVC-free wallpaper is printed on paper with a subtle physical structure and is designed to be straightforward to hang.

In the room

We find that the contrast between the dark background and the vibrant sea green motifs gives this design a distinct presence across different wall sizes. In a bathroom or a downstairs cloakroom, wallpapering all four walls creates an enveloping, atmospheric setting where the floating starfish and sand dollars add quiet interest. In a holiday home living area or bedroom, we would place this design on an accent wall behind a bed or main seating area, letting the dark backdrop anchor the room while the lighter graphic details catch the eye. The fluid arrangement of the marine life avoids rigid horizontal or vertical bands, which allows the pattern to feel balanced even around door frames, mirrors, and fitted cabinetry.

Styling it

The screenprint character and graphic lines of this design make it remarkably versatile across contemporary, coastal, and eclectic interiors. We suggest pairing it with clean-lined furniture and natural textures that echo its coastal character without turning theme-heavy.

• Combine the deep blue ground with mid-toned timber furniture or painted joinery in off-white to keep the room feeling balanced and grounded.
• Choose surrounding fabrics in simple weaves such as natural unbleached cotton or washed textures to complement the graphic nature of the print.
• Introduce understated matte black or brushed metal hardware to reflect the graphic linework of the starfish and sand dollars.

Colour combinations

The palette of our design centres on a deep, inky blue base paired with turquoise, sea green, and muted earthy undertones. For adjacent painted walls and woodwork, we suggest pulling directly from these tones with soft sea greens or deep slate blues for a cohesive, immersive look. If you prefer higher contrast, warm chalky whites and pale oat shades on ceilings and architraves provide a clean break that lets the dark blue wallpaper carry the visual focus of the room.

About our wallpaper

At Wallism, our wallpapers are made-to-measure according to your specific wall dimensions, which can help reduce unnecessary excess wallpaper compared with buying standard fixed-size rolls. We produce our wall murals on PVC-free paper featuring a subtle physical structure on the surface. Designed to be straightforward and easy to hang, our mural wallpapers provide dependable decorating solutions suited to various residential projects and living situations.