Dulux Regal Purple / Purple Infusion 1 / 15RB 07/237
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| Code: | 15RB 07/237 |
| Name: | Regal Purple |
| Brand: | Dulux |
What color is Dulux Regal Purple?
Dulux Regal Purple 15RB 07/237 is a deep, muted purple with a noticeable blue cast, reading closer to inky violet than a bright jewel tone. Its low lightness gives it substantial visual weight, making it especially effective on a feature wall, built-in shelving, or lower cabinetry. In daylight, the blue undertone is likely to feel clearer, while evening lighting can draw out its darker, more shadowy character. Pair Regal Purple with soft greyed whites, pale stone, and natural oak to keep the room grounded, or introduce brushed brass for a warmer contrast. It suits bedrooms, libraries, and dining spaces where a darker wall color can create definition without appearing black.
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What are Dulux Regal Purple undertones?
Regal Purple is a deep, soft aubergine. The HEX sample leans purple; this describes its measurable digital hue direction, not a hidden paint pigment. Warm light may bring out its red or mauve side, while cool daylight can make the violet direction clearer.
HEX value:
RGB code:
66, 59, 100
Is Dulux Regal Purple cool or warm?
With a hue of 250°, this dark purple leans cool, but it is near the neutral line and may feel warmer in certain lighting.
15RB 07/237 Regal Purple HSL code: 250, 26%, 31%
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 Regal Purple
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 purple shade looks under different lighting:
Coordinating colors.
Colors that go with Dulux Regal Purple:
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
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 Regal Purple with a blue hue, complementary colors are those with a orange hue close to 70, such as Dulux Swansdown and Green Ivy.
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 | #423B64 |
| RGB Decimal | 66, 59, 100 |
| RGB Percent | 25.88%, 23.14%, 39.22% |
| HSV | Hue: 250° Saturation: 41.0% Value: 39.22% |
| HSL | hsl(250, 26, 31) |
| CMYK | Cyan: 34.0 Magenta: 41.0 Yellow: 0.0 Key: 60.78 |
| YIQ | Y: 65.767 I: -9.004 Q: 14.24 |
| XYZ | X: 6.11 Y: 5.206 Z: 12.736 |
| CIE Lab | L:27.314 a:13.599 b:-23.132 |
| CIE Luv | L:27.314 u:0.648 v:-30.383 |
| Decimal | 4340580 |
| Hunter Lab | 22.817, 7.872, -17.123 |
Color equivalents
18RB 08/286
Amethyst Falls 2
Dulux
43RB 07/249
Velvet Ribbon 1
Dulux
91BB 07/263
Martian Skies 1
Dulux
83BB 07/202
Plush Velvet 1
Dulux
M350
Ink
Tikkurila

10RB 10/219
Purple Polka 1
Dulux
10RB 08/125
Amethyst Falls 1
Dulux
Indigo Night
Dulux
23RB 10/134
Baked Aubergine
Dulux
RAL 5022
Night blue
RAL Classic

