Deep Sea vs Poseidon
Deep Sea is a Benjamin Moore color while Poseidon comes from Sherwin-Williams. Hue-wise, Deep Sea belongs to the blue-green family and Poseidon to the blue family. At LRV 15 vs 11, Deep Sea will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. The tonal difference — Deep Sea's green character against Poseidon's cool — becomes most visible against white trim or in morning light. At ΔE 7.5, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Deep Sea vs Poseidon Simulated Comparison
5 simulated room previews — drag the slider on each to see Deep Sea on one side and Poseidon 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 Deep Sea comparisons
See how Deep Sea stacks up against other well-photographed colors across different brands and tones.
