Ref. #64777A · N520-5
Iron Mountain
17%LRV Value
NeutralUndertone
Iron Mountain Technical Profile
What color is Iron Mountain? It's a deep cool gray with the hex code #64777A. Colors similar to Iron Mountain include Sherwin-Williams Stargazer, PPG Night Rendezvous, Valspar Blue Thunder. Iron Mountain has a neutral undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. With an LRV of 17, Iron Mountain creates a dramatic, enveloping mood — best on accent walls, dining rooms, and intimate spaces where atmosphere matters more than reflected light. As a cool neutral, Iron Mountain pairs with cool whites for trim, gray-toned or rift-cut oak floors, and brushed nickel or polished chrome hardware. Black accents and natural greenery add contrast. Cool neutrals hold their crisp quality under 4000K+ daylight bulbs. Under 2700K warm light they soften considerably — particularly true for any blue or green undertone.
Colors Similar to Iron Mountain
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Iron Mountain
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Iron Mountain
#64777A
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#7182A0
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Iron Mountain
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Iron 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 Behr Colors
Other Behr colors close to Iron Mountain.
More gray colors from other brands
Cross-brand colors in the gray family — useful when you want a similar look from a different brand.
Iron Mountain — Frequently Asked Questions
What undertone does Iron Mountain have?
Iron Mountain by Behr has a neutral undertone and belongs to the gray color family.
What colors match Iron Mountain from other brands?
The closest matches are Stargazer by Sherwin-Williams (#60757A), Night Rendezvous by PPG (#66787E), Blue Thunder by Valspar (#637A80). Always verify with physical samples.
What is the LRV of Iron Mountain?
Iron Mountain has an LRV of 17.3, where 0 is pure black and 100 is pure white.
Explore More with Iron 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 Iron Mountain's neutral undertone matters more than its surface color — and how to read undertones in any paint chip.