What is the HEX code for Behr Keystone Gray?

The hexadecimal color code for Behr Keystone Gray undertone is #b6bbb2 .

What is the RGB code of Behr Keystone Gray?

RGB code is 182, 187, 178 . 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.

Behr Keystone Gray HDC-AC-21

Q: Is Behr Keystone Gray HDC-AC-21 cool or warm?

Behr HDC-AC-21 Keystone Gray is cool color according to HSL (Hue, Saturation, Lightness) on the color wheel.

Q: What are Behr Keystone Gray undertones?

Green is Behr Keystone Gray undertone color.

Code:	HDC-AC-21
Name:	Keystone Gray
Brand:	Behr

What color is Behr Keystone Gray?

The Behr HDC-AC-21 Keystone Gray is a modern neutral hue that adds sophistication and depth to any space. This color pairs beautifully with accents in a soft taupe or a deep navy blue, creating a harmonious and inviting atmosphere. Consider complementing HDC-AC-21 with touches of crisp white or warm wood tones to enhance its versatility and timeless appeal. Whether used as the main color or as an accent, Keystone Gray brings a sense of calm elegance to interiors, making it a perfect choice for those seeking a refined and contemporary palette.

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What are Behr Keystone Gray undertones?

The undertone of Keystone Gray can be accurately described as a Green hue, as is apparent from the color space provided. By isolating the pure hue and eliminating any tints, tones, and shades, we were able to precisely determine its undertone. This approach has proven to be more accurate than traditional methods of defining undertones on a white background, which are now considered outdated.

HEX value

HEX value:

#B6BBB2

RGB code:

182, 187, 178

Is Behr Keystone Gray HDC-AC-21 cool or warm?

warm

cool

With a hue of 93° thisGreyrefers cool paint shade according to HSL (Hue, Saturation, Lightness) on the color wheel.

HDC-AC-21 Keystone Gray HSL code: 93, 6%, 72%

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.

Cooler hues have a calm and relaxation effect
Cool grey shades are versatile and provide a neutral canvas for your interior design. They seamlessly complement any style, whether it's Victorian, Scandinavian, or Modern.
Using mid-tone cool colors like soft greys and muted blues can help create a calming and modern look in rooms like home offices, bathrooms, and bedrooms. But avoid using these shades in rooms without natural light, as they may look dull.

Act like a pro: Mixing warm and cool shades is a must have to get harmonius interior. Add accents that contrast with the primary color to create visual balance. If your walls are a warm color, don’t forget to add accent in cold colors (furniture, art, décor). A good practice is too use a complementary color scheme.

How light temperature affects Keystone Gray

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 Grey shade looks under different lighting:

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Coordinating colors.
Colors that go with Behr Keystone Gray:

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

HDC-AC-21
Keystone Gray

Darker shades

HDC-AC-21
Keystone Gray

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 Keystone Gray with a yellow hue, complementary colors are those with a purple hue close to 273, such as Behr Mata Hari and Misty Lavender.

HDC-AC-21
Keystone Gray

Behr
Keystone Gray HDC-AC-21
color comparison

Behr
Keystone Gray HDC-AC-21
color equivalents

LRV of Keystone Gray

Keystone Gray has an LRV of 48.23% and refers to Light Medium colors that reflect half of the incident 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 48.23%, 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	#b6bbb2
RGB Decimal	182, 187, 178
RGB Percent	71.37%, 73.33%, 69.80%
HSV	Hue: 93° Saturation: 4.81% Value: 73.33%
HSL	hsl(93, 6, 72)
CMYK	Cyan: 2.67 Magenta: 0.0 Yellow: 4.81 Key: 26.67
YIQ	Y: 184.479 I: -0.087 Q: -3.858
XYZ	X: 45.096 Y: 48.7 Z: 49.132
CIE Lab	L:75.264 a:-3.407 b:3.95
CIE Luv	L:75.264 u:-2.355 v:6.392
Decimal	11975602
Hunter Lab	69.785, -6.777, 7.107