Once Upon a Time

Technical Profile

What color is Once Upon a Time? It's a medium cool green with the hex code #299051. Colors similar to Once Upon a Time include Dunn-Edwards Shamrock Field, MPC Green Vireo, Behr Mermaid Harbor. Comparing swatches side by side is the best way to spot the subtle differences that distinguish these close color relatives. Once Upon a Time has a cool (green) 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. Once Upon a Time (#299051) by Benjamin Moore is a medium green paint color with a rich, saturated presence that draws the eye. 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 46 gives it moderate light reflection, striking a balance between brightness and depth. This mid-tone green adds grounding, nature-inspired energy to home offices, living rooms, and open-plan kitchens. A satin or eggshell finish brings out the richness at this depth, and the slight sheen makes walls easier to maintain. For color coordination, Once Upon a Time pairs beautifully with magenta tones for bold complementary contrast, or with neighboring teal and green hues for a harmonious, flowing palette. Its cool (green) 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, MPC, Behr and others. In terms of mood and atmosphere, Once Upon a Time 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 organic modern, biophilic, and mid-century aesthetics. As part of the Benjamin Moore palette, Once Upon a Time benefits from a curated selection of coordinating colors that the brand recommends for trim, accent, and ceiling pairings. As with any paint color, Once Upon a Time 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 Once Upon a Time (574) 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.