RAL Effect RAL 820-5

Contents

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RAL 820-5 for bedroom (1 photo)
RAL Effect RAL 820-5 reviews (4 photos)
What are RAL Effect RAL 820-5 undertones?
Is RAL 820-5 cool or warm?
How light temperature affects on RAL 820-5
Color comparison and matching
LRV of RAL 820-5
Color codes
Color equivalents

Code:	RAL 820-5
Name:
Brand:	RAL Effect

What color is RAL Effect RAL 820-5?

Let's dive into a full RAL 820-5 paint color review. Take a look at pictures of real interiors and exteriors painted with beautiful RAL 820-5. Find out if this gorgeous cold grey paint color would look great on your living room walls or trims, kitchen cabinet, bedroom accent wall, bathroom or house exterior.

RAL 820-5 for bedroom

We’ve hand-picked a beautiful collection of photos of this amazing grey 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 820-5 reviews (4 photos)

View the photos of real spaces painted with this grey that were not included in specific categories. Close-ups, painted furniture, storages and dressers, hallways, stairs and ceilings.

RAL Effect undefined RAL 820-5 minimalist bathroom

Plan Home visualization

RAL Effect undefined RAL 820-5 kitchen backsplash

Plan Home visualization

RAL Effect undefined RAL 820-5 victorian house interior

Plan Home visualization

RAL Effect undefined RAL 820-5 living room

Plan Home visualization

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What are RAL Effect RAL 820-5 undertones?

RAL 820-5 is a deep, very muted slate blue. The HEX sample has a subtle blue bias, but its low chroma turns that hue into a neutral-looking color rather than a clear blue. Warm bulbs may gray the color down, while cool daylight usually makes its blue or teal direction clearer.

HEX value:

#50555C

RGB code:

80, 85, 92

Is RAL Effect RAL 820-5 cool or warm?

warm

cool

With a hue of 215°, this black leans cool, but it is near the neutral line and may feel warmer in certain lighting.

RAL 820-5 HSL code: 215, 7%, 34%

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 820-5

Natural Lighting. During the day, natural light shifts from about 2000 K at sunrise/sunset to 5500–6500 K at noon.

Sunrise

Morning

Noon

Afternoon

Sunset

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 black shade looks under different lighting:

4000K

2000K

3000K

4000K

5000K

6000K

7000K

Compare
RAL Effect
RAL 820-5
to any other colors

RAL Effect
RAL 820-5
color equivalents

LRV of RAL 820-5

RAL 820-5 has an LRV of 9.17% 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 9.17%, 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	#50555C
RGB Decimal	80, 85, 92
RGB Percent	31.37%, 33.33%, 36.08%
HSV	Hue: 215° Saturation: 13.04% Value: 36.08%
HSL	hsl(215, 7, 34)
CMYK	Cyan: 13.04 Magenta: 7.61 Yellow: 0.0 Key: 63.92
YIQ	Y: 84.303 I: -5.229 Q: 1.121
XYZ	X: 8.488 Y: 8.975 Z: 11.407
CIE Lab	L:35.936 a:-0.373 b:-4.739
CIE Luv	L:35.936 u:-2.983 v:-6.0
Decimal	5264732
Hunter Lab	29.958, -1.854, -1.605