Sea Urchin 3 vs Naval
Where Sea Urchin 3 belongs to Dulux's range, Naval is a Sherwin-Williams color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Sea Urchin 3 (LRV 40) reflects noticeably more light than Naval (LRV 4), a difference of 36 points that becomes especially apparent in rooms with limited natural light. Both lean cool, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 45.0, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Sea Urchin 3 vs Naval in Real Spaces
3 real rooms side by side. Seeing Sea Urchin 3 and Naval in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Sea Urchin 3 will make the room feel meaningfully brighter than Naval would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Sea Urchin 3 reflects noticeably more light off the walls, making the space read more open than Naval.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Sea Urchin 3 reflects noticeably more light off the walls, making the space read more open than Naval.
Color Details
Sea Urchin 3 vs Naval Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 3 on one side and Naval on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Sea Urchin 3 comparisons
See how Sea Urchin 3 stacks up against other well-photographed colors across different brands and tones.
