Sea Urchin 2 vs Agreeable Gray
Sea Urchin 2 (Dulux) and Agreeable Gray (Sherwin-Williams) come from different manufacturers. Sea Urchin 2 reads as blue-grey, while Agreeable Gray reads as greige-grey — two distinct hue families, not close cousins. The 32-point LRV gap — 60 for Agreeable Gray vs 28 for Sea Urchin 2 — means Agreeable Gray will open up a space more effectively. Where Sea Urchin 2 leans cool, Agreeable Gray reads warm — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 27.2 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Sea Urchin 2 vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 2 on one side and Agreeable Gray 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 2 comparisons
See how Sea Urchin 2 stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 28, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 28), opening up a space where Sea Urchin 2 encloses it.
At LRV 28 vs 6, Sea Urchin 2 is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 28), opening up a space where Sea Urchin 2 encloses it.
With LRVs of 30 and 28, the two reflect almost the same amount of light.
At LRV 52 vs 28, Mizzle is decisively the brighter choice.
At LRV 58 vs 28, Accessible Beige is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 28 vs 27), so neither reads brighter in a room.
French Gray reflects far more light (LRV 43 vs 28), opening up a space where Sea Urchin 2 encloses it.
Sea Urchin 2 reflects far more light (LRV 28 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 28, Tranquil Dawn is decisively the brighter choice.
At LRV 28 vs 13, Sea Urchin 2 is decisively the brighter choice.
At LRV 44 vs 28, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 28), opening up a space where Sea Urchin 2 encloses it.
Sea Urchin 2 reads slightly lighter (LRV 28 vs 21), a gap that shows most in low-lit rooms.
At LRV 66 vs 28, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 28, Shoji White is decisively the brighter choice.
At LRV 83 vs 28, Snowbound is decisively the brighter choice.
At LRV 28 vs 12, Sea Urchin 2 is decisively the brighter choice.
At LRV 68 vs 28, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 28), opening up a space where Sea Urchin 2 encloses it.
Calamine reflects far more light (LRV 68 vs 28), opening up a space where Sea Urchin 2 encloses it.
Sea Urchin 2 reads slightly lighter (LRV 28 vs 25), a gap that shows most in low-lit rooms.
At LRV 28 vs 12, Sea Urchin 2 is decisively the brighter choice.
At LRV 45 vs 28, Saybrook Sage is decisively the brighter choice.
Pale Green reads slightly lighter (LRV 31 vs 28), a gap that shows most in low-lit rooms.
Sea Urchin 2 reflects far more light (LRV 28 vs 7), opening up a space where Pine Needle encloses it.
Sea Urchin 2 reads slightly lighter (LRV 28 vs 24), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 28), opening up a space where Sea Urchin 2 encloses it.
Just Walnut reflects far more light (LRV 72 vs 28), opening up a space where Sea Urchin 2 encloses it.