What is the HEX code for RAL Effect RAL 640-4?

The hexadecimal color code for RAL Effect RAL 640-4 undertone is #005C8C .

What is the RGB code of RAL Effect RAL 640-4?

RGB code is 0, 92, 140 . RGB (red, green and blue) additive color model is a system representing the colors used on a digital display screen (TV, PC, laptop, phone or tablet). It defines the intensity of the color with a value between 0 and 255.

RAL Effect RAL 640-4

Q: Is RAL Effect RAL 640-4 cool or warm?

RAL Effect RAL 640-4 is cool color according to HSL (Hue, Saturation, Lightness) on the color wheel.

Q: What are RAL Effect RAL 640-4 undertones?

Blue is RAL Effect RAL 640-4 undertone color.

Contents

show +hide -

RAL 640-4 for bedroom (1 photo)
RAL Effect RAL 640-4 on kitchen cabinets (1 photo)
RAL Effect RAL 640-4 reviews (5 photos)
What are RAL Effect RAL 640-4 undertones?
Is RAL 640-4 cool or warm?
How light temperature affects on RAL 640-4
Color comparison and matching
LRV of RAL 640-4
Color codes
Color equivalents

Code:	RAL 640-4
Name:
Brand:	RAL Effect

What color is RAL Effect RAL 640-4?

Let's dive into a full RAL 640-4 paint color review. Take a look at pictures of real interiors and exteriors painted with beautiful RAL 640-4. 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.

RAL 640-4 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.

Plan Home visualization

RAL Effect RAL 640-4 on kitchen cabinets

Want a stylish kitchen? View real-life photo examples of this fascinating cool blue hue is paired with backsplashes, countertops, and hardware.

RAL Effect undefined RAL 640-4 kitchen cabinets

Plan Home visualization

RAL Effect RAL 640-4 reviews (5 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.

Plan Home visualization

Plan Home visualization

RAL Effect undefined RAL 640-4 minimalist bathroom

Plan Home visualization

RAL Effect undefined RAL 640-4 kitchen interior

Plan Home visualization

RAL Effect undefined RAL 640-4 victorian house interior

Plan Home visualization

What are RAL Effect RAL 640-4 undertones?

RAL 640-4 has a clear blue undertone based on its position in the color space. We identify undertones by isolating the pure hue (separating it from lightness and saturation), which avoids distortions caused by tints, tones, and shades.
This method is generally more reliable than judging undertones on a white background.

HEX value:

#005C8C

RGB code:

0, 92, 140

Is RAL Effect RAL 640-4 cool or warm?

warm

cool

At 201° on the HSL hue wheel, this dark blue falls clearly in the cool range.

RAL 640-4 HSL code: 201, 100%, 27%

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 RAL 640-4

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

2000K

3000K

4000K

5000K

6000K

7000K

Compare
RAL Effect
RAL 640-4
to any other colors

RAL Effect
RAL 640-4
color equivalents

LRV of RAL 640-4

RAL 640-4 has an LRV of 6.57% and refers to Dark colors which means that this color almost does not reflect light. Why LRV is important?

Light Reflectance Value scale illustration

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 6.57%, 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. To copy the code, just click the icon to the right of it.

Format	Code
HEX	#005C8C
RGB Decimal	0, 92, 140
RGB Percent	0.00%, 36.08%, 54.90%
HSV	Hue: 201° Saturation: 100.0% Value: 54.9%
HSL	hsl(201, 100, 27)
CMYK	Cyan: 100.0 Magenta: 34.29 Yellow: 0.0 Key: 45.1
YIQ	Y: 69.964 I: -70.247 Q: -4.524
XYZ	X: 8.559 Y: 9.547 Z: 26.195
CIE Lab	L:37.016 a:-4.409 b:-32.983
CIE Luv	L:37.016 u:-23.683 v:-45.875
Decimal	23692
Hunter Lab	30.897, -4.626, -28.639