Onyx is a luxurious, grounded black that reads true black in most light. It is used for doors, window frames, cabinetry and dramatic accent walls.
Paint color names and codes are trademarks of their respective owners (Sherwin-Williams, Benjamin Moore and Behr); this site is not affiliated with them. The hex value is a digital approximation: the real paint looks different depending on light, sheen and your screen, so always test a physical sample on your wall before you buy.
Undertone: Deep, neutral black.
LRV 4.99: Onyx is a very dark color that absorbs most of the light.
Where to use it: Front door, window trim, cabinets, accent wall.
Trim: Onyx pairs well with Chantilly Lace OC-65 for trim, doors and ceilings.
Benjamin Moore colors that work with Onyx on walls, trim and accents.
The closest matches to Onyx from Sherwin-Williams and Behr, by digital color value. ΔE measures the visible difference: under 2 is barely noticeable.
From lightest to darkest. Tap a shade to copy its code.
Copy the codes or open a palette in the editor to tweak it.
The digital hex value for Benjamin Moore Onyx (2133-10) is #353434, which is rgb(53, 52, 52). Use it for mockups and digital design; a physical sample is the only reliable way to judge the paint itself.
Benjamin Moore Onyx has an LRV (light reflectance value) of 4.99. LRV runs from 0 (black) to 100 (pure white), so Onyx is a very dark color that absorbs most of the light.
Onyx has a deep, neutral black undertone. By its digital value it sits on a fairly neutral middle, but north-facing light will cool it down and warm bulbs will warm it up, so test a sample in the room where you plan to use it.
The closest Sherwin-Williams color to Benjamin Moore Onyx is Caviar (SW 6990, #313031), which is nearly identical by digital value (ΔE 1.9). Paint formulas differ, so color-matched versions are never exact: compare physical samples side by side.
The closest Behr color to Benjamin Moore Onyx is Limousine Leather (MQ5-05, #3B3C3B), which is very close by digital value (ΔE 3.6). Paint formulas differ, so color-matched versions are never exact: compare physical samples side by side.