Dulux Pen Friend
| Code: | |
| Name: | Pen Friend |
| Brand: | Dulux |
What color is Dulux Pen Friend?
Let’s dive into a full Pen Friend paint color review. Take a look at pictures of real interiors and exteriors painted with beautiful Pen Friend. Find out if this gorgeous cold blue paint color would look great on your living room walls or trims, kitchen cabinet, bedroom accent wall, bathroom or house exterior.
Try before you buy

100% accurate
reusable paint samples
Peel, stick,
and repeat
Twice painted
with real paint
Next day
delivery
What are Dulux Pen Friend undertones?
The undertone of Pen Friend can be accurately described as a Blue hue, as is apparent from the color space provided. By isolating the pure hue and eliminating any tints, tones, and shades, we were able to precisely determine its undertone. This approach has proven to be more accurate than traditional methods of defining undertones on a white background, which are now considered outdated.
HEX value
HEX value:
#024A7F
RGB code:
2, 74, 127
Is Dulux Pen Friend cool or warm?
With a hue of 205° thisdark bluerefers cool paint shade according to HSL (Hue, Saturation, Lightness) on the color wheel.
Pen Friend HSL code: 205, 97%, 25%
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.
- Cooler hues have a calm and relaxation effect
- Cool blue shades make a room feel sleek, fresh, and modern, perfect for bedrooms, bathrooms, and home offices where a sense of calm and sophistication is desired.
- Dark, cool shades create a dramatic and sophisticated atmosphere, making them a great choice for bedrooms and living rooms when you want to make a bold yet calming statement. However, be cautious about using dark, cool colors in small spaces, as they can make the room feel smaller and more enclosed.
Act like a pro: Mixing warm and cool shades is a must have to get harmonius interior. Add accents that contrast with the primary color to create visual balance. If your walls are a warm color, don’t forget to add accent in cold colors (furniture, art, décor). A good practice is too use a complementary color scheme.
How light temperature affects Pen Friend
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 dark blue shade looks under different lighting:


4000K
Coordinating colors.
Colors that go with Dulux Pen Friend:
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
Pen Friend
Darker shades
Pen Friend
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 Pen Friend with a green hue, complementary colors are those with a red hue close to 25, such as Dulux Volcanic Splash 6 and Golden Sands.
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 | #024A7F | |
| RGB Decimal | 2, 74, 127 | |
| RGB Percent | 0.78%, 29.02%, 49.80% | |
| HSV | Hue: 205° Saturation: 98.43% Value: 49.8% | |
| HSL | hsl(205, 97, 25) | |
| CMYK | Cyan: 98.43 Magenta: 41.73 Yellow: 0.0 Key: 50.2 | |
| YIQ | Y: 58.514 I: -59.936 Q: 1.263 | |
| XYZ | X: 6.303 Y: 6.442 Z: 20.984 | |
| CIE Lab | L:30.501 a:1.946 b:-35.35 | |
| CIE Luv | L:30.501 u:-18.183 v:-47.119 | |
| Decimal | 150143 | |
| Hunter Lab | 25.381, -0.089, -31.253 |
Color equivalents
43BB 09/340
Cobalt Embrace
Dulux

RAL 5010
Gentian blue
RAL Classic

RAL 5005
Signal blue
RAL Classic

30BB 08/263
Atlantic Surf 1
Dulux
Oxford Blue (Weathershield)
Dulux
30BB 08/225
Wild Water 1
Dulux
256
Mazarine
Little Greene

Honest Indigo
Dulux
30BB 08/188
Royal Regatta 1
Dulux

50BB 11/321
Sapphire Springs 2
Dulux
255
Smalt
Little Greene

70BB 09/241
Starlit Night 1
Dulux
50BB 11/216
Morning Jewel 1
Dulux
50BB 08/257
Subzero Blue
Dulux

30BB 10/337
Royal Regatta 2
Dulux
56BB 07/196
Deep Pacific
Dulux
RAL 5017
Traffic blue
RAL Classic

50BB 08/171
Sapphire Salute
Dulux


