Onyx

Technical Profile

What color is Onyx? It's a deep neutral gray with the hex code #363535. Colors similar to Onyx include Hirshfield's Sayward Pine, Sherwin-Williams Black Magic, Farrow & Ball Pitch Black. Comparing swatches side by side is the best way to spot the subtle differences that distinguish these close color relatives. Onyx has a neutral undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. Understanding a color's undertone is key to avoiding combinations that clash — it often matters more than the surface color itself. Onyx (#363535) by Benjamin Moore is a deep gray paint color with a understated, nearly neutral quality. It delivers a grounded richness that adds drama and sophistication. On the temperature spectrum this shade stays balanced between warm and cool, making it exceptionally versatile. Its RGB channels are closely balanced, contributing to its neutral, even-keeled visual character. At an LRV of 21 it absorbs more light than it reflects, creating a moody, enveloping atmosphere. Deep neutrals like this create contrast and gravitas on accent walls, exterior facades, and kitchen cabinetry, pairing well with lighter trim. Satin or semi-gloss finishes help deep colors reflect just enough light to show their full depth, especially on accent walls and trim. As a balanced neutral, Onyx coordinates with virtually any accent color — from warm golds and blush to cool blues and greens. Its neutral undertone means trim and ceiling whites should lean neutral to avoid a jarring clash. If Benjamin Moore is unavailable in your area, close cross-brand alternatives exist from Hirshfield's, Sherwin-Williams, Farrow & Ball and others. In terms of mood and atmosphere, Onyx lends a serious, anchoring presence that pairs with metallics, natural wood, and bold art. Designers often reach for shades like this when the goal is to shape how a room feels, not just how it looks. This shade is a natural fit for virtually every design style from minimalist Japandi to rustic farmhouse to sleek contemporary. As part of the Benjamin Moore palette, Onyx benefits from a curated selection of coordinating colors that the brand recommends for trim, accent, and ceiling pairings. As with any paint color, Onyx can shift noticeably between natural daylight, warm incandescent, and cool LED lighting — testing a sample swatch on your wall under different conditions is always recommended. Deep shades generally benefit from a quality primer and may require an extra coat for even, streak-free coverage. Deep tones pair beautifully with velvet upholstery, burnished metal fixtures, dark-stained wood, and textured wallcoverings on adjacent surfaces. You can order Onyx (2133-10) directly from Benjamin Moore or through major paint retailers, and we recommend purchasing a peel-and-stick sample to preview it on your wall before buying gallons.