Onyx (BM 2133-10)

Onyx BM 2133-10#353434, LRV 5Verified with Benjamin Moore, 2026-10-02
Living room with walls painted Benjamin Moore Onyx 2133-10 (simulated)
Living room, walls in Onyx

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

Onyx (BM 2133-10) is a very deep, neutral black from Benjamin Moore: LRV 5, so it reflects about 5 percent of the light that hits it.

Colors that go with Onyx

Three Benjamin Moore colors picked for Onyx by this site's color math: a trim white, 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 Onyx, 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-WilliamsBlack MagicSW 699131.2very close
BehrRaven BlackPPF-594.72.9noticeably different
ValsparDark Kettle Black4011-254.4noticeably different
PPG PaintsBlack Magic1001-753.9noticeably different

Lighter and darker in Benjamin Moore

Color data

BrandBenjamin Moore
Color code2133-10
Hex#353434
RGB53, 52, 52
HSL0°, 1%, 21%
LRV (light reflectance value)5
Lab L*, a*, b*21.8, 0.4, 0.2
UndertoneNeutral
Temperatureneutral
Color familyBlack

Same paint, two kinds of light

Onyx (BM 2133-10), published as #353434

North light (cool, indirect)
#272C32
South light (warm, direct)
#433C34

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

Similar shades from Benjamin Moore

Comparisons that include Onyx (BM 2133-10)

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Common questions

What is the LRV of Onyx (BM 2133-10)?
Onyx has an LRV of 5. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Onyx is a very deep color.
What is the closest match to Onyx in another brand?
Black Magic (SW 6991) from Sherwin-Williams, at a deltaE of 1.2 (very close).
Is Onyx warm or cool?
Benjamin Moore lists Onyx as neutral, with a Neutral undertone. Its Lab b* value is 0.2; a higher b* is warmer and yellower, a lower one cooler and bluer.

Sources: LRV and hex from Benjamin Moore technical data (verified 2026-10-02). 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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