Mustard Olive

Technical Profile

What color is Mustard Olive? It's a medium warm brown with the hex code #A18643. Colors similar to Mustard Olive include Dunn-Edwards Arrow Rock, Sherwin-Williams Brassy, Behr Madagascar. Comparing swatches side by side is the best way to spot the subtle differences that distinguish these close color relatives. Mustard Olive 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. Mustard Olive (#A18643) by Benjamin Moore is a medium brown paint color with a balanced saturation that feels natural and approachable. It delivers a versatile mid-tone depth that anchors a room without overwhelming it. On the temperature spectrum this shade leans toward warmth, adding coziness and inviting energy. In its RGB breakdown, red is the dominant channel, which gives it a subtle rosy warmth even under different lighting conditions. A Light Reflectance Value of 53 gives it moderate light reflection, striking a balance between brightness and depth. A mid-tone neutral at this depth adds sophisticated warmth or coolness to living rooms, bedrooms, and transitional hallways, grounding the space without closing it in. A satin or eggshell finish brings out the richness at this depth, and the slight sheen makes walls easier to maintain. For color coordination, Mustard Olive pairs beautifully with blue tones for bold complementary contrast, or with neighboring green and red hues for a harmonious, flowing palette. 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 Dunn-Edwards, Sherwin-Williams, Behr and others. In terms of mood and atmosphere, Mustard Olive strikes a cozy, amber-toned balance that feels like late-afternoon light filtering through linen curtains. 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 a wide range of interior design styles. As part of the Benjamin Moore palette, Mustard Olive benefits from a curated selection of coordinating colors that the brand recommends for trim, accent, and ceiling pairings. As with any paint color, Mustard Olive 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. Mid-tone shades like this look best when balanced with a mix of textures — think leather seating, brushed brass hardware, woven wool, and raw-edge wood. You can order Mustard Olive (2151-10) 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.