Porpoise vs Storm Warning
Both from Sherwin-Williams's palette. Hue-wise, Porpoise belongs to the greige-grey family and Storm Warning to the grey family. They have nearly identical light reflectance values (13 vs 14), so they'll read as similarly Dark in most lighting conditions. Porpoise runs warm while Storm Warning is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. The ΔE 3.8 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
Porpoise vs Storm Warning Simulated Comparison
5 simulated room previews — drag the slider on each to see Porpoise on one side and Storm Warning 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 Porpoise comparisons
See how Porpoise stacks up against other well-photographed colors across different brands and tones.
