Sea Mariner featured
Sherwin-Williams9640

Sea Mariner

Often used for its genuinely dark qualities, Sea Mariner remains a staple for Sherwin-Williams designers. It is widely considered one of the best colors in its class to anchor a room without demanding the spotlight. We've gathered 4 real-home scenarios to help you visualize this color alongside our expert data.

Hex

#434A54

LRV

6.68

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Light Reflectance Value
6.68
Dark
TemperatureCool

Sea Mariner in Real Rooms

Sea Mariner has a low LRV of 6.68 — it absorbs light and reads as a genuinely dark, enveloping color. It's neutral in temperature, making it adaptable across different lighting conditions and room orientations. Grouped in the Neutral family, the photos below show it applied in a misc, kitchen cabinets and mudroom.

1 Misc Photo

In walk-in closets or pantries, Sea Mariner provides a dark, sophisticated backdrop that makes your belongings look organized and curated. It turns a storage space into a boutique-like experience every time you open the door.

Sea Mariner Utility Room

Utility room walls in Sea Mariner maximize storage space functionality.

@patti_wilson_design

2 Kitchen Cabinets Photos

On traditional shaker-style cabinets, Sea Mariner brings out the clean lines and shadow gaps of the woodwork. It's a color that highlights quality craftsmanship, making it an ideal choice for a high-end renovation or a custom kitchen build.

Sw Sea Mariner Painted Cabinets

Kitchen cabinets painted Sea Mariner provide rich, sophisticated storage.

@patti_wilson_design

Sea Mariner Painted Cabinets

Cabinet surfaces in Sea Mariner deliver timeless, elegant depth.

@dutchhausfurniture

1 Mudroom Photo

In a laundry/mudroom combo, Sea Mariner adds a touch of luxury to a space that is usually purely functional. It makes the chores feel a little less like work by surrounding you with a color that is sophisticated and calming.

Sherwin Williams Sea Mariner Laundry Room

Mudroom walls in Sea Mariner establish a functional, inviting entry.

@dutchhausfurniture

Coordinating Colors

Frost Bite
Sea Mariner
Frost Bite vs Sea Mariner
Frost Bite
Sea Mariner
Sherwin-Williams
Frost Bite
9505 · LRV 88
Sherwin-Williams
Sea Mariner
9640 · LRV 7

At LRV 88 vs 7, Frost Bite is decisively the brighter choice.

Sea Mariner
Natural Wool vs Sea Mariner
Natural Wool
Sea Mariner
Sherwin-Williams
Natural Wool
9508 · LRV 59
Sherwin-Williams
Sea Mariner
9640 · LRV 7

At LRV 59 vs 7, Natural Wool is decisively the brighter choice.

Sea Mariner
Sea Mariner vs Sleepy Owlet
Sea Mariner
Sleepy Owlet
Sherwin-Williams
Sea Mariner
9640 · LRV 7
Sherwin-Williams
Sleepy Owlet
9513 · LRV 39

Sleepy Owlet reflects far more light (LRV 39 vs 7), opening up a space where Sea Mariner encloses it.

Similar Colors

Charcoal Blue
Sea Mariner
Charcoal Blue vs Sea Mariner
Charcoal Blue
Sea Mariner
Sherwin-Williams
Charcoal Blue
2739 · LRV 6
Sherwin-Williams
Sea Mariner
9640 · LRV 7

With LRVs of 7 and 6, the two reflect almost the same amount of light.

Cyberspace
Sea Mariner
Cyberspace vs Sea Mariner
Cyberspace
Sea Mariner
Sherwin-Williams
Cyberspace
7076 · LRV 6
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Their light reflectance is nearly identical (LRV 7 vs 6), so neither reads brighter in a room.

Sea Mariner
Sea Serpent
Sea Mariner vs Sea Serpent
Sea Mariner
Sea Serpent
Sherwin-Williams
Sea Mariner
9640 · LRV 7
Sherwin-Williams
Sea Serpent
7615 · LRV 7

Their light reflectance is nearly identical (LRV 7 vs 7), so neither reads brighter in a room.

Sea Mariner
Tarragon
Sea Mariner vs Tarragon
Sea Mariner
Tarragon
Sherwin-Williams
Sea Mariner
9640 · LRV 7
Sherwin-Williams
Tarragon
9660 · LRV 7

With LRVs of 7 and 7, the two reflect almost the same amount of light.

Mount Etna
Sea Mariner
Mount Etna vs Sea Mariner
Mount Etna
Sea Mariner
Sherwin-Williams
Mount Etna
7625 · LRV 6
Sherwin-Williams
Sea Mariner
9640 · LRV 7

With LRVs of 7 and 6, the two reflect almost the same amount of light.

Gale Force
Sea Mariner
Gale Force vs Sea Mariner
Gale Force
Sea Mariner
Sherwin-Williams
Gale Force
7605 · LRV 6
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Their light reflectance is nearly identical (LRV 7 vs 6), so neither reads brighter in a room.

Indigo Batik
Sea Mariner
Indigo Batik vs Sea Mariner
Indigo Batik
Sea Mariner
Sherwin-Williams
Indigo Batik
7602 · LRV 8
Sherwin-Williams
Sea Mariner
9640 · LRV 7

With LRVs of 8 and 7, the two reflect almost the same amount of light.

Big Dipper
Sea Mariner
Big Dipper vs Sea Mariner
Big Dipper
Sea Mariner
Sherwin-Williams
Big Dipper
9645 · LRV 6
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Their light reflectance is nearly identical (LRV 7 vs 6), so neither reads brighter in a room.

Sea Mariner
Mountain Fig vs Sea Mariner
Mountain Fig
Sea Mariner
Sherwin-Williams
Mountain Fig
9690 · LRV 4
Sherwin-Williams
Sea Mariner
9640 · LRV 7

With LRVs of 7 and 4, the two reflect almost the same amount of light.

Complementary Colors

Sea Mariner
Truly Taupe
Sea Mariner vs Truly Taupe
Sea Mariner
Truly Taupe
Sherwin-Williams
Sea Mariner
9640 · LRV 7
Sherwin-Williams
Truly Taupe
6038 · LRV 35

Truly Taupe reflects far more light (LRV 35 vs 7), opening up a space where Sea Mariner encloses it.

Heavenly White
Sea Mariner
Heavenly White vs Sea Mariner
Heavenly White
Sea Mariner
Sherwin-Williams
Heavenly White
6553 · LRV 81
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Heavenly White reflects far more light (LRV 81 vs 7), opening up a space where Sea Mariner encloses it.

Sea Mariner
Original White vs Sea Mariner
Original White
Sea Mariner
Sherwin-Williams
Original White
7077 · LRV 74
Sherwin-Williams
Sea Mariner
9640 · LRV 7

At LRV 74 vs 7, Original White is decisively the brighter choice.

Sea Mariner
Palisade vs Sea Mariner
Palisade
Sea Mariner
Sherwin-Williams
Palisade
7635 · LRV 35
Sherwin-Williams
Sea Mariner
9640 · LRV 7

At LRV 35 vs 7, Palisade is decisively the brighter choice.

Griffin
Sea Mariner
Griffin vs Sea Mariner
Griffin
Sea Mariner
Sherwin-Williams
Griffin
7026 · LRV 13
Sherwin-Williams
Sea Mariner
9640 · LRV 7

A 6-point LRV gap (13 vs 7) makes Griffin the marginally brighter of the two.

Sea Mariner
Warm Stone
Sea Mariner vs Warm Stone
Sea Mariner
Warm Stone
Sherwin-Williams
Sea Mariner
9640 · LRV 7
Sherwin-Williams
Warm Stone
7032 · LRV 20

At LRV 20 vs 7, Warm Stone is decisively the brighter choice.

Mercurial
Sea Mariner
Mercurial vs Sea Mariner
Mercurial
Sea Mariner
Sherwin-Williams
Mercurial
9550 · LRV 61
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Mercurial reflects far more light (LRV 61 vs 7), opening up a space where Sea Mariner encloses it.

Lighter Colors

Downing Slate
Sea Mariner
Downing Slate vs Sea Mariner
Downing Slate
Sea Mariner
Sherwin-Williams
Downing Slate
2819 · LRV 21
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Downing Slate reflects far more light (LRV 21 vs 7), opening up a space where Sea Mariner encloses it.

Gibraltar
Sea Mariner
Gibraltar vs Sea Mariner
Gibraltar
Sea Mariner
Sherwin-Williams
Gibraltar
6257 · LRV 14
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Gibraltar reads slightly lighter (LRV 14 vs 7), a gap that shows most in low-lit rooms.

Granite Peak
Sea Mariner
Granite Peak vs Sea Mariner
Granite Peak
Sea Mariner
Sherwin-Williams
Granite Peak
6250 · LRV 14
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Granite Peak reads slightly lighter (LRV 14 vs 7), a gap that shows most in low-lit rooms.

Mineral Gray
Sea Mariner
Mineral Gray vs Sea Mariner
Mineral Gray
Sea Mariner
Sherwin-Williams
Mineral Gray
2740 · LRV 9
Sherwin-Williams
Sea Mariner
9640 · LRV 7

With LRVs of 9 and 7, the two reflect almost the same amount of light.

Distance
Sea Mariner
Distance vs Sea Mariner
Distance
Sea Mariner
Sherwin-Williams
Distance
6243 · LRV 15
Sherwin-Williams
Sea Mariner
9640 · LRV 7

A 9-point LRV gap (15 vs 7) makes Distance the marginally brighter of the two.

Darker Colors

After the Storm
Sea Mariner
After the Storm vs Sea Mariner
After the Storm
Sea Mariner
Sherwin-Williams
After the Storm
9685 · LRV 3
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Sea Mariner reads slightly lighter (LRV 7 vs 3), a gap that shows most in low-lit rooms.

Charcoal Blue
Sea Mariner
Charcoal Blue vs Sea Mariner
Charcoal Blue
Sea Mariner
Sherwin-Williams
Charcoal Blue
2739 · LRV 6
Sherwin-Williams
Sea Mariner
9640 · LRV 7

With LRVs of 7 and 6, the two reflect almost the same amount of light.

Cyberspace
Sea Mariner
Cyberspace vs Sea Mariner
Cyberspace
Sea Mariner
Sherwin-Williams
Cyberspace
7076 · LRV 6
Sherwin-Williams
Sea Mariner
9640 · LRV 7

Their light reflectance is nearly identical (LRV 7 vs 6), so neither reads brighter in a room.

Color Codes

HEX#434A54
RGB67, 74, 84
HSL215° 11% 30%
CMYK20 12 0 67
CIE LabL: 31.2 a: -0.4 b: -6.9
XYZX: 6.36 Y: 6.73 Z: 9.35