Sherwin Williams Portsmouth SW 9644

Contents

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Portsmouth for bedroom (1 photo)
Sherwin Williams Portsmouth reviews (4 photos)
What are Sherwin Williams Portsmouth undertones?
Is Portsmouth SW 9644 cool or warm?
How light temperature affects on Portsmouth
Monochromatic color scheme
Complementary color scheme
Color comparison and matching
LRV of Portsmouth SW 9644
Color codes
Color equivalents

Official page:	Portsmouth SW 9644
Code:	SW 9644
Name:	Portsmouth
Brand:	Sherwin Williams
Collections:	Emerald Designer Edition - Rustic + Refined

What color is Sherwin Williams Portsmouth?

Sherwin Williams Portsmouth SW 9644 is a muted blue-green gray with a medium depth and a softly weathered appearance. Its balance of gray keeps the color grounded, while the green-blue cast becomes more noticeable in clear daylight. In lower or warmer artificial light, Portsmouth can read as a deeper, quieter charcoal-teal rather than a bright coastal shade. It suits bedrooms, offices, powder rooms, or exterior siding where a subdued color with visible character is wanted. Pair it with warm white trim, pale oak, aged brass, charcoal accents, and natural linen for a layered, understated palette.

Portsmouth for bedroom

We’ve hand-picked a beautiful collection of photos of this amazing grey shade used in real bedrooms. Take a look and imagine how this wonderful cool dark paint color could transform your own bedroom space.

Sherwin Williams Portsmouth bedroom ceiling

@coastalpaintingservicesllc

Sherwin Williams Portsmouth reviews (4 photos)

View the photos of real spaces painted with this grey that were not included in specific categories. Close-ups, painted furniture, storages and dressers, hallways, stairs and ceilings.

@homeonportsmouth

Sherwin Williams Portsmouth hallway color

@hollybsunderland

Sherwin Williams Portsmouth hallway paint

@hollybsunderland

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What are Sherwin Williams Portsmouth undertones?

Portsmouth reads as a midtone, very muted teal-gray with low saturation, giving it an understated neutral character rather than a clearly colorful blue or green. The supplied digital sample leans subtly green within its teal direction, though that bias is faint and can shift with surrounding colors and lighting. Sherwin-Williams lists Portsmouth in its Neutral color family, which fits its visibly softened, grayed-down appearance. Warm artificial light may bring out a slightly softer, grayer cast, while cool daylight can make its restrained teal-green direction easier to notice.

Manufacturer information used in this description: official color page.

HEX value:

#768482

RGB code:

118, 132, 130

Is Sherwin Williams Portsmouth cool or warm?

warm

cool

With a hue of 171°, this black leans cool, but it is near the neutral line and may feel warmer in certain lighting.

SW 9644 Portsmouth HSL code: 171, 6%, 49%

Hue - degree on a color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.
Saturation is expressed as a percentage. At 0%, it appears as a shade of grey, and at 100%, it is in full color.
Lightness is also a percentage value. 0% is black, and 100% is white.

How light temperature affects Portsmouth

Natural Lighting. During the day, natural light shifts from about 2000 K at sunrise/sunset to 5500–6500 K at noon.

Sunrise

Morning

Noon

Afternoon

Sunset

In addition, natural-light temperature depends on its direction:

Direction of sunlight	Visible temp.	Hue	Duration
North	Cool	Bluish	All day
East	Warm	Yellow	Before noon
West	Warm	Orange-red	After noon
South	Warm	Orange-yellow	All day

Artificial Lighting. When choosing bulbs, pay attention to their color temperature in Kelvins.
Use the slider to see how this black shade looks under different lighting:

4000K

2000K

3000K

4000K

5000K

6000K

7000K

Coordinating colors.
Colors that go with Sherwin Williams Portsmouth:

Monochromatic color scheme

This scheme consists of various shades, tints, and tones of a single color. While it offers a perfect combination of hues, without accent décor it may become monotonous.

Lighter shades

SW 9644
Portsmouth

Darker shades

SW 9644
Portsmouth

SW 2848
Roycroft Pewter

Complementary color scheme

This color scheme is a combination of two shades that are opposite each other on the color wheel. The high contrast between these colors creates a vibrant and dynamic visual effect. For the color Portsmouth with a green hue, complementary colors are those with a red hue close to 351, such as Sherwin Williams Whimsical White and Chaise Mauve.

SW 9644
Portsmouth

Compare
Sherwin Williams
Portsmouth SW 9644
to any other colors

Sherwin Williams
Portsmouth SW 9644
color equivalents

LRV of Portsmouth

Portsmouth has an LRV of 21.94% and refers to Medium colors that reflect a lot of light. Why LRV is important?

Light Reflectance Value scale illustration

Light Reflectance Value measures the amount of visible and usable light that reflects from a painted surface.
Simply put, the higher the LRV of a paint color, the brighter the room you will get.
The scale goes from 0% (absolute black, absorbing all light) to 100% (pure white, reflecting all light).

Act like a pro: When choosing paint with an LRV of 21.94%, pay attention to your bulbs' brightness. Light brightness is measured in lumens. The lower the paint's LRV, the higher lumen level you need. Every square foot of room needs at least 40 lumens. That means for a 200 ft² living room you'll need about 8000 lumens of light – e.g., eight 1000 lm bulbs.

Color codes

We have collected almost every possible color code you could ever need.
Not sure what the difference between HEX and RGB is? We break down color models in plain language. Understanding color models

Format	Code
HEX	#768482
RGB Decimal	118, 132, 130
RGB Percent	46.27%, 51.76%, 50.98%
HSV	Hue: 171° Saturation: 10.61% Value: 51.76%
HSL	hsl(171, 6, 49)
CMYK	Cyan: 10.61 Magenta: 0.0 Yellow: 1.52 Key: 48.24
YIQ	Y: 127.586 I: -7.7 Q: -3.584
XYZ	X: 19.751 Y: 21.965 Z: 24.312
CIE Lab	L:53.99 a:-5.529 b:-0.662
CIE Luv	L:53.99 u:-7.514 v:-0.047
Decimal	7767170
Hunter Lab	46.867, -6.795, 2.051