Black Iron 2120-20 is a gray paint color from Benjamin Moore. It has a hex value of #3B3D3F, LRV 5 and a neutral undertone. Its closest cross-brand match is Sayward Pine from Vista Paint (nearly identical), with 49 more equivalents across other brands.
Ref. #3B3D3F · 2120-20
Black Iron
5%LRV Value
NeutralUndertone
Black Iron Technical Profile
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Black Iron in Every Brand
The closest equivalent to Black Iron in each major paint brand, ranked by how close the match reads. Always verify with a physical sample. How we calculate match accuracy →
Benjamin MooreBlack Iron
Nearly identical
Vista PaintSayward Pine
Sayward Pine
Vista Paint
Nearly identical
Totally Black
Behr
Nearly identical
Dark Engine
Dunn-Edwards
Nearly identical
Starless Sky
PPG
Nearly identical
Black Licorice
Hirshfield's
Nearly identical
Dark Kettle Black
Valspar
Nearly identical
True Black
Kilz
Nearly identical
Greenblack
Sherwin-Williams
Nearly identical
Off-Black
Farrow & Ball
Very similar
Cauldron
Dutch Boy
Very similar
Nourish .06
Colorhouse
Very similar
Granite Grey
RAL
Very similar
Seeing a close call? Order a peel-and-stick sample of Black Iron — or sample it next to its top matches — Samplize buy 8 peel-and-stick samples, get 2 free.
Recommended Pairings
Colors That Work With Black Iron
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Black Iron
#3B3D3F
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#454568
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Black Iron
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Black Iron Room Palettes
Color schemes built around this color — each swatch links to the closest matching paint.
Warm & Inviting
Warm tones with cozy appeal — welcoming and comfortable
Cool & Calm
Cool hues with soft contrast — serene and restful
Bold Contrast
Complementary hues with punch — dynamic and striking
Similar Benjamin Moore Colors
Other Benjamin Moore colors close to Black Iron.
More gray colors from other brands
Cross-brand colors in the gray family — useful when you want a similar look from a different brand.
Black Iron — Frequently Asked Questions
What undertone does Black Iron have?
Black Iron by Benjamin Moore has a neutral undertone and sits in the gray color family. The undertone shifts with light — warmer under 2700K bulbs, cleaner and cooler under 4000K daylight — so sample Black Iron in your own space before committing.
What colors match Black Iron from other brands?
The closest cross-brand equivalents to Black Iron are Sayward Pine by Vista Paint (a near-identical match), Totally Black by Behr (a near-identical match), Dark Engine by Dunn-Edwards (a near-identical match) — the best options for getting Black Iron's look from a brand your local store carries. Confirm with a physical sample, since sheen and lighting shift the final result.
What is the LRV of Black Iron?
Black Iron has a Light Reflectance Value (LRV) of 4.6, on a scale where 0 is pure black and 100 is pure white — that makes it a deep, dramatic color best saved for accent walls, dining rooms, and cozy spaces where atmosphere matters more than reflected light.
Explore More with Black Iron
Related Reading
How to Match Paint Colors Across Brands
The science behind Delta E and CIEDE2000 — find a Behr equivalent of any Sherwin-Williams shade, or a Benjamin Moore alternative when your store is out of stock.
Understanding Paint Color Undertones
Why Black Iron's neutral undertone matters more than its surface color — and how to read undertones in any paint chip.