Valspar UK Submarine Blue L15bW28b
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| Official page: | Submarine Blue L15bW28b |
| Code: | L15bW28b |
| Name: | Submarine Blue |
| Brand: | Valspar UK |
What color is Valspar UK Submarine Blue?
Valspar UK Submarine Blue L15bW28b is a deep, muted blue with a noticeable grey cast that keeps it grounded rather than bright. Its low-to-medium saturation gives it a substantial, slightly softened appearance, reading darker in rooms with limited daylight. Use it on a study wall, built-in shelving, or kitchen cabinetry where its blue character can add definition without looking overly vivid. Crisp white trim brings out the cooler side of the shade, while pale oak, aged brass, and warm off-whites create a more balanced contrast. On an exterior door or lower wall panelling, Submarine Blue provides clear depth against light stone, cream render, or weathered timber.
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What are Valspar UK Submarine Blue undertones?
Submarine Blue is a deep, muted slate blue. The HEX sample leans blue; this describes its measurable digital hue direction, not a hidden paint pigment. Warm bulbs may gray the color down, while cool daylight usually makes its blue or teal direction clearer.
HEX value:
RGB code:
44, 76, 100
Is Valspar UK Submarine Blue cool or warm?
At 206° on the HSL hue wheel, this dark blue falls clearly in the cool range.
L15bW28b Submarine Blue HSL code: 206, 39%, 28%
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 Submarine Blue
Natural Lighting. During the day, natural light shifts from about 2000 K at sunrise/sunset to 5500–6500 K at noon.
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 dark blue shade looks under different lighting:


4000K
Coordinating colors.
Colors that go with Valspar UK Submarine Blue:
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
L15bW28b
Submarine Blue
Darker shades
L15bW28b
Submarine Blue
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 Submarine Blue with a green hue, complementary colors are those with a red hue close to 26, such as Valspar UK Peat Bog and Woke Up Like This.
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 | #2c4c64 |
| RGB Decimal | 44, 76, 100 |
| RGB Percent | 17.25%, 29.80%, 39.22% |
| HSV | Hue: 206° Saturation: 56.0% Value: 39.22% |
| HSL | hsl(206, 38.89, 28.24) |
| CMYK | Cyan: 56.0 Magenta: 24.0 Yellow: 0.0 Key: 60.78 |
| YIQ | Y: 69.168 I: -26.781 Q: 0.7 |
| XYZ | X: 5.922 Y: 6.624 Z: 13.02 |
| CIE Lab | L:30.935 a:-4.082 b:-17.609 |
| CIE Luv | L:30.935 u:-13.559 v:-22.246 |
| Decimal | 2903140 |
| Hunter Lab | 25.737, -3.965, -11.977 |
Color equivalents
30BB 08/188
Royal Regatta 1
Dulux

V111-6
Blue Fedora
Valspar US
W30b
Blue Dusk
Valspar UK
2061-20
Champion Cobalt
Benjamin Moore

4009-7
Indigo Cloth
Valspar US
V109-6
Midnight Sonata
Valspar US
MQ5-58
Velvet Rope
Behr
10BB 07/150
Venetian Crystal 1
Dulux

27BB 10/138
Night Seas
Dulux
W30c
Union Jack
Valspar UK
P034
Nordic Noir
Valspar US
10BB 09/155
Indigo Shade
Dulux

V110-6
Mykonos Reflection
Valspar US
4863
Statement Blue
Jotun

V107-6
Deep Pacific (US)
Valspar US
30BB 08/225
Wild Water 1
Dulux
M510-7
Inked
Behr

257
Royal Navy
Little Greene



