What is the HEX code and RGB for Benjamin Moore Onyx?

The exact hexadecimal code for Benjamin Moore Onyx (2133-10) is #27282A. Its sRGB values are R: 39, G: 40, B: 42.

What is the LRV (Light Reflectance Value) of Onyx?

The Light Reflectance Value (LRV) of Benjamin Moore Onyx is 3.5. This makes it a moody, deep shade that absorbs light and adds intimate drama.

What is the best cheap dupe for Benjamin Moore Onyx?

The best budget match for Benjamin Moore Onyx is Behr Abyss (PPU18-01) with a 98.3% visual similarity (CIEDE2000 ΔE: 0.8), saving $46 per gallon.

What undertones does Onyx have?

Benjamin Moore Onyx features True Pitch Black, Charcoal Noir, Ink undertones. It performs best when paired with clean white trim such as Pure White.

Benjamin MooreCode: 2133-10Darks & Moody

Onyx

Benjamin Moore deepest, most luxurious black. Crisp and modern without blue undertones, perfect for interior doors and window sashes.

Dominant Undertones:

True Pitch BlackCharcoal NoirInk

Est. Price: $94/gal

LRV (Reflectance)

3.5/ 100

Max Dupe Savings

$50/gal

🏷️ Don't buy a $100 paint can without testing!

Order an authentic 12"x12" Peel & Stick adhesive sample of Onyx.

Order $5.95 Sample→

Benjamin Moore2133-10

Onyx

HEX: #27282A • LRV: 3.5

⚡ Side-by-Side:Onyx vs Abyss Dupe

→

🛋️ Interactive Room VisualizerLive Simulation

See Onyx on living room walls under different lighting temperatures.

Onyx#27282A

🔬 Scientific Color BreakdownD65 Standard Illuminant

Exact spectrophotometric metrics used by automated tint dispensers and interior designers.

Hexadecimal

#27282A

Web & Digital

sRGB Values

39, 40, 42

Red, Green, Blue

LRV

3.5%

Absorbs Light

HSL

220°, 4%, 16%

Hue, Sat, Light

CMYK

7,5,0,84

Print coordinates

Brand Tier

premium

$94/gal MSRP

Top Budget Dupes for Onyx

CIEDE2000 Ranked

Calculated color matches in cheaper paint brands like Behr, Valspar, and Sherwin-Williams.

💸 Potential Whole-House Savings:$500 (10 gal)

#1Behr Alternative

98.3% Match

Onyx

Benjamin Moore

$94/gal

DUPE

Abyss

Behr (PPU18-01)

$48/gal

💰 Saves $46 per gallon

49% Cheaper

CIEDE2000 (ΔE):0.8

LRV Comparison:3.5 vs 3.2

"Flawless Match (Undetectable difference on wall)"

Color Specs →Buy at Home Depot

#2Sherwin-Williams Alternative

90.9% Match

Onyx

Benjamin Moore

$94/gal

DUPE

Tricorn Black

Sherwin-Williams (SW 6258)

$82/gal

💰 Saves $12 per gallon

13% Cheaper

CIEDE2000 (ΔE):2.42

LRV Comparison:3.5 vs 3

"Excellent Visual Dupe (Same mood and undertone)"

Color Specs →Buy at Sherwin-Williams Store

#3Sherwin-Williams Alternative

88.3% Match

Onyx

Benjamin Moore

$94/gal

DUPE

Black Magic

Sherwin-Williams (SW 6991)

$82/gal

💰 Saves $12 per gallon

13% Cheaper

CIEDE2000 (ΔE):3

LRV Comparison:3.5 vs 3

"Very Close Match (Slightly warmer or cooler undertone)"

Color Specs →Buy at Sherwin-Williams Store

#4Valspar Alternative

83.7% Match

Onyx

Benjamin Moore

$94/gal

DUPE

Dark Kettle Black

Valspar (4011-2)

$44/gal

💰 Saves $50 per gallon

53% Cheaper

CIEDE2000 (ΔE):3.87

LRV Comparison:3.5 vs 4

"Very Close Match (Slightly warmer or cooler undertone)"

Color Specs →Buy at Lowe's

Onyx Equivalents Across Major Paint Brands

Summary of the closest visual matches across all major retail competitors.

Brand	Matching Color	Code	Similarity	ΔE	Price / Gal	Action
Sherwin-Williams	Tricorn Black	SW 6258	90.9%	2.42	$82	View Specs
Farrow & Ball	Railings	No. 31	80.5%	4.51	$145	View Specs
Behr	Abyss	PPU18-01	98.3%	0.8	$48	View Specs
Magnolia Home	Weekend	JG-03	60%	12.9	$52	View Specs
Valspar	Dark Kettle Black	4011-2	83.7%	3.87	$44	View Specs

Coordinating Trim & Accent Colors for Onyx

Professional color pairings recommended by interior designers for ceilings, doors, and accent walls.

Recommended Trim White

Pure White (SW 7005)

Sherwin-Williams • LRV 84

Recommended Accent

Iron Ore (SW 7069)

Sherwin-Williams • LRV 6

Paint Counter Pro Tip

Most Home Depot and Lowe's color computers already contain the formulation for Benjamin Moore Onyx. Simply ask the associate to "color-match Onyx in Behr Marquee base".

Frequently Asked Questions About Onyx

What is the exact HEX code and RGB for Benjamin Moore Onyx?

The official hexadecimal color code is #27282A. In the standard sRGB color space, its coordinates are Red: 39, Green: 40, Blue: 42.

What is the Light Reflectance Value (LRV) of Onyx?

Onyx has an LRV of 3.5. Its deep LRV makes it an anchor shade that creates intimate, cocoon-like spaces in dining rooms, offices, and powder rooms.

What is the closest Behr or cheap dupe for Onyx?

The closest budget alternative is Behr Abyss (PPU18-01), scoring a 98.3% visual match on the CIEDE2000 algorithm and saving approximately $46 per gallon.