Ref. #434A54 · 9640
Sea Mariner
7%LRV Value
NeutralUndertone
Sea Mariner Technical Profile
What color is Sea Mariner? It's a dark cool neutral with the hex code #434A54. Colors similar to Sea Mariner include Benjamin Moore Hale Navy, Valspar Royal Navy, Benjamin Moore Mysterious. Sea Mariner has a neutral undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. With an LRV of 7, Sea Mariner 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, Sea Mariner 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 Sea Mariner
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Sea Mariner
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Sea Mariner
#434A54
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#545179
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Sea Mariner
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Sea Mariner 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 Sherwin-Williams Colors
Other Sherwin-Williams colors close to Sea Mariner.
More neutral colors from other brands
Cross-brand colors in the neutral family — useful when you want a similar look from a different brand.
Sea Mariner — Frequently Asked Questions
What undertone does Sea Mariner have?
Sea Mariner by Sherwin-Williams has a neutral undertone and belongs to the neutral color family.
What colors match Sea Mariner from other brands?
The closest matches are Hale Navy by Benjamin Moore (#444C57), Royal Navy by Valspar (#414A55), Mysterious by Benjamin Moore (#464C55). Always verify with physical samples.
What is the LRV of Sea Mariner?
Sea Mariner has an LRV of 6.7, where 0 is pure black and 100 is pure white.
Explore More with Sea Mariner
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 Sea Mariner's neutral undertone matters more than its surface color — and how to read undertones in any paint chip.