Match Poseidon
Sherwin-Williams Poseidon is a deep, low-reflectance shade, cool in character with an LRV of 11. The matches below are ranked by ΔE, a perceptual color-difference score.
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Closest matches across every brand
One match per brand, ranked by ΔE — a perceptual color difference score calculated from Lab color space values. Lower is closer. Click any card to compare side by side in simulated rooms.
With LRVs of 12 and 11, the two reflect almost the same amount of light. At ΔE 2.1 you'd need them side by side to tell them apart.
With LRVs of 12 and 11, the two reflect almost the same amount of light. At ΔE 4.7 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 11 vs 9), so neither reads brighter in a room. The ΔE 4.8 gap is real but not dramatic — distinct as a choice, harmonious together.
A 6-point LRV gap (17 vs 11) makes Emerald Glade the marginally brighter of the two. The ΔE 6.0 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 11 and 11, the two reflect almost the same amount of light. At ΔE 6.4 they're clearly different, yet close enough to share a room.
With LRVs of 11 and 8, the two reflect almost the same amount of light. At ΔE 6.7 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 13 vs 11), so neither reads brighter in a room. The ΔE 7.5 gap is real but not dramatic — distinct as a choice, harmonious together.
At ΔE 12.2 these are two genuinely different directions, not variations on a theme.
Poseidon reads slightly lighter (LRV 11 vs 5), a gap that shows most in low-lit rooms. At ΔE 20.5 these are two genuinely different directions, not variations on a theme.