Valspar UK Neptune's Castle R241A
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| Official page: | Neptune's Castle R241A |
| Code: | R241A |
| Name: | Neptune's Castle |
| Brand: | Valspar UK |
What color is Valspar UK Neptune's Castle?
Valspar UK Neptune's Castle R241A is a deep blue-green with a clear teal cast, sitting closer to shaded sea glass than to a bright turquoise. Its low-light depth gives it a substantial presence on walls, while the green note keeps it from reading as purely navy. In daylight, this color can show more of its cool blue-green character; under warm evening lighting, it appears darker and slightly more muted. Use Neptune's Castle on a dining room wall, built-in shelving, or painted cabinetry where its richness can anchor pale oak, warm brass, off-white, and natural linen. For a sharper contrast, pair it with chalky white trim or softly veined pale stone.
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What are Valspar UK Neptune's Castle undertones?
Neptune's Castle is a deep, soft deep teal. The HEX sample leans teal; 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:
22, 93, 89
Is Valspar UK Neptune's Castle cool or warm?
At 177° on the HSL hue wheel, this dark blue falls clearly in the cool range.
R241A Neptune's Castle HSL code: 177, 62%, 23%
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 Neptune's Castle
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 Neptune's Castle:
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
R241A
Neptune's Castle
Darker shades
R241A
Neptune's Castle
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 Neptune's Castle with a green hue, complementary colors are those with a red hue close to 357, such as Valspar UK Pink Forté and Bella Rosa.
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 | #165d59 |
| RGB Decimal | 22, 93, 89 |
| RGB Percent | 8.63%, 36.47%, 34.90% |
| HSV | Hue: 177° Saturation: 76.34% Value: 36.47% |
| HSL | hsl(177, 61.74, 22.55) |
| CMYK | Cyan: 76.34 Magenta: 0.0 Yellow: 4.3 Key: 63.53 |
| YIQ | Y: 71.315 I: -41.024 Q: -16.264 |
| XYZ | X: 6.047 Y: 8.72 Z: 10.813 |
| CIE Lab | L:35.439 a:-22.111 b:-3.929 |
| CIE Luv | L:35.439 u:-25.314 v:-2.186 |
| Decimal | 1465689 |
| Hunter Lab | 29.529, -15.121, -1.04 |
Color equivalents
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