Poseidon (BM 664)

Poseidon BM 664#00A6A1, LRV 31.4
Living room with walls painted Benjamin Moore Poseidon 664 (simulated)
Living room, walls in Poseidon

Illustrative room. Screen colors vary; test a sample before you paint.

Poseidon (BM 664) is a deep, cool blue from Benjamin Moore: LRV 31.4, so it reflects about 31 percent of the light that hits it.

Colors that go with Poseidon

Four Benjamin Moore colors picked for Poseidon by this site's color math: a trim white, a deeper blue, a quiet contrast from another family, a dark accent. Benjamin Moore did not choose these pairings.

Closest match in every other brand

Each brand's closest color to Poseidon, ranked by CIEDE2000 (deltaE): under 1.0 is indistinguishable, 1.0 to 2.3 very close, 2.3 to 5 noticeably different, over 5 clearly different.

BrandClosest colorCodeLRVdeltaEHow close
Sherwin-WilliamsAquariumSW 6767325.0noticeably different
BehrFijiP460-531.73.0noticeably different
ValsparLaguna Green5007-10B312.2very close
PPG PaintsGrecian Isle1232-6291.7very close

Lighter and darker in Benjamin Moore

Color data

BrandBenjamin Moore
Color code664
Hex#00A6A1
RGB0, 166, 161
HSL178°, 100%, 33%
LRV (light reflectance value)31.4
Lab L*, a*, b*61.5, -36.4, -7.7
UndertoneCool
Temperaturecool
Color familyBlue

Same paint, two kinds of light

Poseidon (BM 664), published as #00A6A1

North light (cool, indirect)
#009C9F
South light (warm, direct)
#3EB0A1

These swatches and the rooms above are a simulation, not a measurement. How the visualizer works

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Common questions

What is the LRV of Poseidon (BM 664)?
Poseidon has an LRV of 31.4. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Poseidon is a deep color.
What is the closest match to Poseidon in another brand?
Grecian Isle (PPG 1232-6) from PPG Paints, at a deltaE of 1.7 (very close).
Is Poseidon warm or cool?
Benjamin Moore lists Poseidon as cool, with a Cool undertone. Its Lab b* value is -7.7; a higher b* is warmer and yellower, a lower one cooler and bluer.

Sources: LRV and hex as published by the manufacturer, via PaintDB (CC BY 4.0). Color differences are CIEDE2000 values computed by this site from the hex values (data snapshot 2026-10-01). Color names and codes belong to their manufacturers.

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