RAL Classic Sapphire blue RAL 5003
Contentsshow +hide -
- Sapphire blue for bedroom (1 photo)
- RAL Classic RAL 5003 on kitchen cabinets (11 photos)
- Sapphire blue for exterior (6 photos)
- RAL Classic Sapphire blue reviews (8 photos)
- What are RAL Classic Sapphire blue undertones?
- Is Sapphire blue RAL 5003 cool or warm?
- How light temperature affects on Sapphire blue
- Complementary color scheme
- Color comparison and matching
- LRV of Sapphire blue RAL 5003
- Color codes
- Color equivalents
| Code: | RAL 5003 |
| Name: | Sapphire blue |
| Brand: | RAL Classic |
What color is RAL Classic Sapphire blue?
RAL Classic Sapphire blue RAL 5003 is a deep, muted blue with a distinctly cool, slightly gray-cast appearance. At #1F3855, it reads as a restrained navy in bright daylight, while lower light brings out its shadowy, ink-like depth. Sapphire blue suits cabinetry, front doors, and accent walls where a darker color can add definition without looking black. Pair it with soft off-whites, pale gray-blue tones, natural oak, brushed nickel, or warm brass for contrast. On larger walls, good lighting helps this shade retain its blue character and prevents it from feeling too heavy.
Sapphire blue for bedroom
We’ve hand-picked a beautiful collection of photos of this amazing blue shade used in real bedrooms. Take a look and imagine how this wonderful cool dark paint color could transform your own bedroom space.

RAL Classic RAL 5003 on kitchen cabinets (11 photos)
Want a stylish kitchen? View real-life photo examples of this fascinating cool blue hue is paired with backsplashes, countertops, and hardware.











Sapphire blue for exterior (6 photos)
Looking for a fresh new look for your house exterior or starting from skretch? We’ve collected pictures of real-life homes that have been painted with this cool blue hue. Find inspiration for your house’s exterior, front doors, gates, shutters, frames or windows.






RAL Classic Sapphire blue reviews (8 photos)
View the photos of real spaces painted with this blue that were not included in specific categories. Close-ups, painted furniture, storages and dressers, hallways, stairs and ceilings.








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What are RAL Classic Sapphire blue undertones?
Sapphire blue is a deep, soft navy 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:
RGB code:
31, 56, 85
Is RAL Classic Sapphire blue cool or warm?
At 212° on the HSL hue wheel, this dark blue falls clearly in the cool range.
RAL 5003 Sapphire blue HSL code: 212, 47%, 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 Sapphire blue
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 RAL Classic Sapphire blue:
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 Sapphire blue with a blue hue, complementary colors are those with a orange hue close to 32, such as RAL Classic Beige grey and Pearl beige.
LRV of Sapphire blue
Sapphire blue has an LRV of 6.21% and refers to Dark colors which means that this color almost does not reflect light. Why LRV is important?
Light Reflectance Value measures the amount of visible and usable light that reflects from a painted surface.
Simply put, the higher the LRV of a paint color, the brighter the room you will get.
The scale goes from 0% (absolute black, absorbing all light) to 100% (pure white, reflecting all light).
Act like a pro: When choosing paint with an LRV of 6.21%, pay attention to your bulbs' brightness. Light brightness is measured in lumens. The lower the paint's LRV, the higher lumen level you need. Every square foot of room needs at least 40 lumens. That means for a 200 ft2 living room you'll need about 8000 lumens of light – e.g., eight 1000 lm bulbs.
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 | #1F3855 |
| RGB Decimal | 31, 56, 85 |
| RGB Percent | 12.16%, 21.96%, 33.33% |
| HSV | Hue: 212° Saturation: 63.53% Value: 33.33% |
| HSL | hsl(212, 47, 23) |
| CMYK | Cyan: 63.53 Magenta: 34.12 Yellow: 0.0 Key: 66.67 |
| YIQ | Y: 51.831 I: -24.216 Q: 3.736 |
| XYZ | X: 3.618 Y: 3.775 Z: 9.13 |
| CIE Lab | L:22.914 a:0.467 b:-20.446 |
| CIE Luv | L:22.914 u:-9.738 v:-24.019 |
| Decimal | 2046037 |
| Hunter Lab | 19.43, -0.762, -14.259 |
Color equivalents
RAL 630-6
RAL Effect

RAL 630-5
RAL Effect

RAL 630-M
RAL Effect

RAL 5026
Pearl night blue
RAL Classic

RAL 5013
Cobalt blue
RAL Classic

RAL 5001
Green blue
RAL Classic

RAL 620-5
RAL Effect

RAL 590-M
RAL Effect

RAL 590-5
RAL Effect

RAL 580-6
RAL Effect

RAL 620-6
RAL Effect

RAL 590-6
RAL Effect

RAL 5011
Steel blue
RAL Classic

RAL 5002
Ultramarine blue
RAL Classic

RAL 630-4
RAL Effect

RAL 590-3
RAL Effect

RAL 5022
Night blue
RAL Classic

RAL 620-M
RAL Effect



