Dulux Cobalt Night / Black Stillness / Lights Out / 30BB 05/022
| Code: | 30BB 05/022 |
| Name: | Cobalt Night |
| Brand: | Dulux |
What color is Dulux Cobalt Night?
Let’s dive into a full Cobalt Night paint color review. Take a look at pictures of real interiors and exteriors painted with beautiful 30BB 05/022. Find out if this gorgeous cold grey paint color would look great on your living room walls or trims, kitchen cabinet, bedroom accent wall, bathroom or house exterior.
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What are Dulux Cobalt Night undertones?
Cobalt Night has a clear blue undertone based on its position in the color space. We identify undertones by isolating the pure hue (separating it from lightness and saturation), which avoids distortions caused by tints, tones, and shades.
This method is generally more reliable than judging undertones on a white background.
HEX value:
#343639
RGB code:
52, 54, 57
Is Dulux Cobalt Night 30BB 05/022 cool or warm?
With a hue of 216°, this black leans cool, but it's near the neutral line and may feel warmer in certain lighting.
30BB 05/022 Cobalt Night HSL code: 216, 5%, 21%
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 Cobalt Night
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 (Kelvins).
Use the slider to see how this black shade looks under different lighting:


4000K
Coordinating colors.
Colors that go with Dulux Cobalt Night:
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
30BB 05/022
Cobalt Night
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 Cobalt Night with a blue hue, complementary colors are those with a orange hue close to 36, such as Dulux Chalk Blush 3 and Vintage Coins.
Color codes
We have collected almost every possible color code you could ever need. To copy the code, just click the icon to the right of it.
| Format | Code | |
|---|---|---|
| HEX | #343639 | |
| RGB Decimal | 52, 54, 57 | |
| RGB Percent | 20.39%, 21.18%, 22.35% | |
| HSV | Hue: 216° Saturation: 8.77% Value: 22.35% | |
| HSL | hsl(216, 5, 21) | |
| CMYK | Cyan: 8.77 Magenta: 5.26 Yellow: 0.0 Key: 77.65 | |
| YIQ | Y: 53.744 I: -2.156 Q: 0.511 | |
| XYZ | X: 3.474 Y: 3.664 Z: 4.394 | |
| CIE Lab | L:22.527 a:-0.138 b:-2.174 | |
| CIE Luv | L:22.527 u:-1.117 v:-2.309 | |
| Decimal | 3421753 | |
| Hunter Lab | 19.141, -1.103, -0.212 |
Color equivalents
RAL 7021
Black grey
RAL Classic

RAL 7016
Anthracite grey
RAL Classic

09BB 07/008
Almost Black
Dulux
256
Pitch Black
Farrow and Ball

228
Lamp Black
Little Greene

Black
Dulux
Y498
Midnight
Tikkurila

RAL 9004
Signal black
RAL Classic

00NN 05/000
Night Jewels 1
Dulux

RAL 9011
Graphite black
RAL Classic

RAL 9017
Traffic black
RAL Classic

252
Dock Blue
Little Greene

57
Off-Black
Farrow and Ball

Sapphire Splendor
Dulux

RAL 8019
Grey brown
RAL Classic

31
Railings
Farrow and Ball

RAL 7024
Graphite grey
RAL Classic

294
Paean Black
Farrow and Ball

