Stillwater vs Sea Urchin 3
Stillwater is a Cloverdale Paint color while Sea Urchin 3 comes from Dulux. These are both blues, so the question isn't which hue to choose — it's where within blue to land. At LRV 49 vs 40, Stillwater will read as the brighter of the two — a 9-point gap that matters most in north-facing or low-light rooms. At ΔE 8.7, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Stillwater vs Sea Urchin 3 in Real Spaces
3 real rooms side by side. Stillwater and Sea Urchin 3 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Stillwater returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Stillwater will make the room feel meaningfully brighter than Sea Urchin 3 would.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The LRV gap is large enough that Stillwater will make the room feel meaningfully brighter than Sea Urchin 3 would.
Color Details
Stillwater vs Sea Urchin 3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Stillwater on one side and Sea Urchin 3 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 Stillwater comparisons
See how Stillwater stacks up against other well-photographed colors across different brands and tones.
