Poseidon vs Real Red
Both from Sherwin-Williams's palette. Poseidon reads as blue, while Real Red reads as pink-red — two distinct hue families, not close cousins. They have nearly identical light reflectance values (11 vs 13), so they'll read as similarly Dark in most lighting conditions. Poseidon runs cool while Real Red is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 93.2, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Poseidon vs Real Red in Real Spaces
1 real room side by side. Seeing Poseidon and Real Red in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Color Details
Poseidon vs Real Red Simulated Comparison
5 simulated room previews — drag the slider on each to see Poseidon on one side and Real Red 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.










































