Ref. #666B89 · 8003-48E
Shadow Mountain
15%LRV Value
Cool (Violet)Undertone
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. Shadow Mountain has a cool (violet) undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. With an LRV of 15, Shadow Mountain creates a dramatic, enveloping mood — best on accent walls, dining rooms, and intimate spaces where atmosphere matters more than reflected light. Pair it with cool whites for trim, walnut floors, and either brass or matte black hardware depending on whether you want warm or grounded contrast. Sage green works as a complementary accent. Purples are the most lighting-sensitive paint family. 2700K bulbs push them toward mauve or pink; 4000K daylight keeps them violet or even slightly blue. Always sample at multiple times of day.
Colors Similar to Shadow Mountain
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Shadow Mountain
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Shadow Mountain
#666B89
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#8B7BA7
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Shadow Mountain
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Shadow Mountain Room Palettes
Color schemes built around this color — each swatch links to the closest matching paint.
Warm & Inviting
Warm tones with cozy appeal — welcoming and comfortable
Cool & Calm
Cool hues with soft contrast — serene and restful
Bold Contrast
Complementary hues with punch — dynamic and striking
Similar Valspar Colors
Other Valspar colors close to Shadow Mountain.
More purple colors from other brands
Cross-brand colors in the purple family — useful when you want a similar look from a different brand.
Shadow Mountain — Frequently Asked Questions
What undertone does Shadow Mountain have?
Shadow Mountain by Valspar has a cool (violet) undertone and belongs to the purple color family.
What colors match Shadow Mountain from other brands?
The closest matches are Mountain Vale by Vista Paint (#646B8F), Champion Blue by Dunn-Edwards (#606788), French Violet by Benjamin Moore (#6A6E87). Always verify with physical samples.
What is the LRV of Shadow Mountain?
Shadow Mountain has an LRV of 15.1, where 0 is pure black and 100 is pure white.
Explore More with Shadow Mountain
Related Reading
How to Match Paint Colors Across Brands
The science behind Delta E and CIEDE2000 — find a Behr equivalent of any Sherwin-Williams shade, or a Benjamin Moore alternative when your store is out of stock.
Understanding Paint Color Undertones
Why Shadow Mountain's cool (violet) undertone matters more than its surface color — and how to read undertones in any paint chip.