Shadow Mountain

Technical Profile

What color is Shadow Mountain? It's a deep warm purple with the hex code #666B89. Colors similar to Shadow Mountain include Vista Paint Mountain Vale, Dunn-Edwards Champion Blue, Benjamin Moore French Violet. Comparing swatches side by side is the best way to spot the subtle differences that distinguish these close color relatives. Shadow Mountain has a cool (violet) 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. Shadow Mountain (#666B89) by Valspar is a deep purple paint color with a gentle, subdued character. It delivers a grounded richness that adds drama and sophistication. On the temperature spectrum this shade leans toward warmth, adding coziness and inviting energy. In its RGB breakdown, blue is the dominant channel, which gives it a subtle cool, atmospheric depth even under different lighting conditions. At an LRV of 15 it absorbs more light than it reflects, creating a moody, enveloping atmosphere. Deep plum and aubergine shades create opulent drama in dining rooms, bedrooms, and luxurious powder rooms. Satin or semi-gloss finishes help deep colors reflect just enough light to show their full depth, especially on accent walls and trim. For color coordination, Shadow Mountain pairs beautifully with yellow tones for bold complementary contrast, or with neighboring purple and blue hues for a harmonious, flowing palette. Its cool (violet) undertone means trim and ceiling whites should lean neutral to avoid a jarring clash. If Valspar is unavailable in your area, close cross-brand alternatives exist from Vista Paint, Dunn-Edwards, Benjamin Moore and others. In terms of mood and atmosphere, Shadow Mountain delivers a fireside richness that wraps the room in warmth and groundedness. 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 eclectic, glam, and romantic vintage décor. As part of the Valspar palette, Shadow Mountain benefits from a curated selection of coordinating colors that the brand recommends for trim, accent, and ceiling pairings. Because Shadow Mountain has a low LRV, it can look dramatically different under incandescent versus daylight bulbs — always test a large swatch on the actual wall before committing. 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 Shadow Mountain (8003-48E) directly from Valspar or through major paint retailers, and we recommend purchasing a peel-and-stick sample to preview it on your wall before buying gallons.