Dulux Celestial Blue 1 81BG 09/241

Contents

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What are Dulux Celestial Blue 1 undertones?
Is Celestial Blue 1 81BG 09/241 cool or warm?
How light temperature affects on Celestial Blue 1
Monochromatic color scheme
Complementary color scheme
Color comparison and matching
Color codes
Color equivalents

Code:	81BG 09/241
Name:	Celestial Blue 1
Brand:	Dulux

What color is Dulux Celestial Blue 1?

Dulux Celestial Blue 1 81BG 09/241 is a deep, cool blue with a clear teal cast, reflected in its rich #00546E tone. It has enough depth to ground a room without reading as near-black, making it particularly effective on a feature wall, built-in shelving, or painted cabinetry. In brighter light, its blue-green character is more apparent; lower light brings out its darker, inkier side. Pair Celestial Blue 1 with crisp white trim, pale grey, warm off-white, or natural oak to give the color contrast and definition. Brushed brass, black metal, and light stone surfaces also sit comfortably alongside this shade.

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What are Dulux Celestial Blue 1 undertones?

Celestial Blue 1 is a deep, soft 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:

#00546E

RGB code:

0, 84, 110

Is Dulux Celestial Blue 1 cool or warm?

warm

cool

At 194° on the HSL hue wheel, this dark blue falls clearly in the cool range.

81BG 09/241 Celestial Blue 1 HSL code: 194, 100%, 22%

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 Celestial Blue 1

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 dark blue shade looks under different lighting:

4000K

2000K

3000K

4000K

5000K

6000K

7000K

Coordinating colors.
Colors that go with Dulux Celestial Blue 1:

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

81BG 09/241
Celestial Blue 1

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 Celestial Blue 1 with a green hue, complementary colors are those with a red hue close to 14, such as Dulux Winter Pumpkin and Mango Melody 5.

81BG 09/241
Celestial Blue 1

Compare
Dulux
Celestial Blue 1 81BG 09/241
to any other colors

Dulux
Celestial Blue 1 81BG 09/241
color equivalents

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	#00546E
RGB Decimal	0, 84, 110
RGB Percent	0.00%, 32.94%, 43.14%
HSV	Hue: 194° Saturation: 100.0% Value: 43.14%
HSL	hsl(194, 100, 22)
CMYK	Cyan: 100.0 Magenta: 23.64 Yellow: 0.0 Key: 56.86
YIQ	Y: 61.848 I: -58.411 Q: -9.678
XYZ	X: 5.983 Y: 7.466 Z: 15.873
CIE Lab	L:32.844 a:-11.633 b:-21.046
CIE Luv	L:32.844 u:-22.758 v:-26.714
Decimal	21614
Hunter Lab	27.323, -8.727, -15.318