Benjamin Moore Black Iron 2120-20
| Official page: | Black Iron 2120-20 |
| Code: | 2120-20 |
| Name: | Black Iron |
| Brand: | Benjamin Moore |
What color is Benjamin Moore Black Iron?
Black Iron is a rich and deep hue that exudes sophistication and elegance. This versatile shade pairs beautifully with soft neutrals like warm whites and soft greys, creating a timeless and modern look. Incorporating accents in shades of gold or copper can add a touch of glamour and warmth to spaces painted with 2120-20. To create a bold and dramatic contrast, consider incorporating pops of jewel tones like emerald green or sapphire blue against the dark backdrop of Black Iron.
Black Iron for bedroom (3 photos)
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.



Benjamin Moore 2120-20 on kitchen cabinets (5 photos)
Want a stylish kitchen? View real-life photo examples of this fascinating cool grey hue is paired with backsplashes, countertops, and hardware.





Black Iron for exterior
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 grey hue. Find inspiration for your house’s exterior, front doors, gates, shutters, frames or windows.

Benjamin Moore Black Iron reviews (3 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.



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What are Benjamin Moore Black Iron undertones?
Black Iron has a 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:
#3A3C3E
RGB code:
58, 60, 62
Is Benjamin Moore Black Iron 2120-20 cool or warm?
With a hue of 210°, this black leans cool, but it's near the neutral line and may feel warmer in certain lighting.
2120-20 Black Iron HSL code: 210, 3%, 24%
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 Black Iron
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 black shade looks under different lighting:


4000K
Coordinating colors.
Colors that go with Benjamin Moore Black Iron:
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
2120-20
Black Iron
Darker shades
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 Black Iron with a blue hue, complementary colors are those with a orange hue close to 30, such as Benjamin Moore Night Shade and Woodcliff Lake.
LRV of Black Iron
Black Iron has an LRV of 6.12% 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 6.12%, 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 | #3A3C3E | |
| RGB Decimal | 58, 60, 62 | |
| RGB Percent | 22.75%, 23.53%, 24.31% | |
| HSV | Hue: 210° Saturation: 6.45% Value: 24.31% | |
| HSL | hsl(210, 3, 24) | |
| CMYK | Cyan: 6.45 Magenta: 3.23 Yellow: 0.0 Key: 75.69 | |
| YIQ | Y: 59.63 I: -1.834 Q: 0.199 | |
| XYZ | X: 4.23 Y: 4.479 Z: 5.198 | |
| CIE Lab | L:25.196 a:-0.378 b:-1.525 | |
| CIE Luv | L:25.196 u:-1.105 v:-1.649 | |
| Decimal | 3816510 | |
| Hunter Lab | 21.164, -1.359, 0.253 |
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