Tarn Water

Technical Profile

What color is Tarn Water? It's a medium cool neutral with the hex code #66948B. Colors similar to Tarn Water include Benjamin Moore Shenandoah, Benjamin Moore Waterbury Green, Behr Nature Retreat. Comparing swatches side by side is the best way to spot the subtle differences that distinguish these close color relatives. Tarn Water 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. Tarn Water (#66948B) by MPC is a medium neutral paint color with a gentle, subdued character. It delivers a versatile mid-tone depth that anchors a room without overwhelming it. On the temperature spectrum this shade carries a cool cast, lending calm and collected elegance. In its RGB breakdown, green is the dominant channel, which gives it a subtle earthy, organic quality even under different lighting conditions. A Light Reflectance Value of 54 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, Tarn Water pairs beautifully with red tones for bold complementary contrast, or with neighboring teal and green hues for a harmonious, flowing palette. Its neutral undertone means trim and ceiling whites should lean neutral to avoid a jarring clash. If MPC is unavailable in your area, close cross-brand alternatives exist from Benjamin Moore, Behr, PPG and others. In terms of mood and atmosphere, Tarn Water delivers a composed, professional calm often favored in contemporary and Scandinavian-inspired interiors. 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 MPC palette, Tarn Water benefits from a curated selection of coordinating colors that the brand recommends for trim, accent, and ceiling pairings. As with any paint color, Tarn Water 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 Tarn Water (MP4787) directly from MPC or through major paint retailers, and we recommend purchasing a peel-and-stick sample to preview it on your wall before buying gallons.