Poseidon vs Raging Sea
Both from Sherwin-Williams's palette. Hue-wise, Poseidon belongs to the blue family and Raging Sea to the blue-green family. They have nearly identical light reflectance values (11 vs 14), so they'll read as similarly Dark in most lighting conditions. Both lean cool, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 13.7, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Poseidon vs Raging Sea Simulated Comparison
5 simulated room previews — drag the slider on each to see Poseidon on one side and Raging Sea 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 Poseidon comparisons
See how Poseidon stacks up against other well-photographed colors across different brands and tones.








































