Sea Urchin vs Agreeable Gray
Where Sea Urchin belongs to Benjamin Moore's range, Agreeable Gray is a Sherwin-Williams color. Hue-wise, Sea Urchin belongs to the beige family and Agreeable Gray to the greige-grey family. They have nearly identical light reflectance values (62 vs 60), so they'll read as similarly Light in most lighting conditions. Both lean warm, so they'll behave similarly in mixed or changing light conditions. The ΔE 9.9 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. 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 vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 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 comparisons
See how Sea Urchin stacks up against other well-photographed colors across different brands and tones.
