Paint colors · Benjamin Moore, as published by the brand

Benjamin Moore Copley Gray HC-104: hex #918A78, LRV, undertone

Copley Gray (HC-104) from Benjamin Moore is hex #918A78 with an LRV of 25.65. It measures as a warm neutral with a yellow undertone, and black text on it reaches 6.11:1.

By Paul Gunder. Every value is computed from published standards; see how ColorPlum works.

Updated November 11, 2026

Benjamin MooreCopley GrayHC-104

Hex: #918A78
RGB: 145, 138, 120
LRV: 25.65
Undertone: Warm neutral, yellow undertone

LRV 25.65. Dark: a deep color that absorbs most light; often used on cabinets, doors and accent walls.

A neutral with a yellow cast (OKLCH hue 89°, chroma 0.027). Expect the yellow to show more in warm evening light and next to cooler whites.

Coordinating colors Benjamin Moore suggests

White DoveOC-17
Bennington GrayHC-82
Sea Haze2137-50
Million Dollar Red2003-10

Closest colors from other brands

ΔE is the CIEDE2000 difference between the published values: under 2 is hard to tell apart on a wall, 2 to 5 is a visible but related shade. Always compare real chips before you buy.

Name, code, LRV and color value as published by Benjamin Moore on its color page (checked 2026-11-11). A screen can only approximate paint: sheen, lighting and the screen itself all change it, so check a physical sample. ColorPlum is not affiliated with Benjamin Moore.

ColorPlum swatchCopley Graymedium, soft brown

HEX: #918A78
RGB: rgb(145, 138, 120)
HSL: hsl(43, 10%, 52%)

Best text on it: black at 6.11:1

Build a palette Make a gradient Check contrast Wallpaper

Copley Gray#918A78

Every code for Copley Gray

HEX#918A78
RGBrgb(145, 138, 120)
HSLhsl(43, 10%, 52%)
HSV43°, 17%, 57%
CMYK0%, 5%, 17%, 43%
Lablab(57.7% 0.3 10.7)
OKLCHoklch(63.4% 0.027 89.3)
Decimal9538168

Tints, shades and tones

From white to black in 10% steps, with Copley Gray in the middle. Tap a code to copy it.

90%#F4F3F2
80%#E9E8E4
70%#DEDCD7
60%#D3D0C9
50%#C8C5BC
40%#BDB9AE
30%#B2ADA1
20%#A7A193
10%#9C9686
Base#918A78
10%#837C6C
20%#746E60
30%#666154
40%#575348
50%#49453C
60%#3A3730
70%#2C2924
80%#1D1C18
90%#0F0E0C

Tones (mixed with gray)

10%#8F8979
20%#8E887A
30%#8C877A
40%#8A867B
50%#89857C
60%#87847D
70%#85837E
80%#83827E
90%#82817F

Matching colors

Complementary

#918A78
#787F91

Analogous

#917D78
#918A78
#8B9178

Triadic

#918A78
#78918A
#8A7891

Split complementary

#918A78
#788B91
#7E7891

Tetradic (square)

#918A78
#78917D
#787F91
#91788B

Monochromatic

#3E3B32
#686255
#918A78
#B3AFA2
#D6D3CC

Copley Gray in 3D color space

OKLab, the space ColorPlum does its math in: lightness runs up the pole, hue goes around it and saturation grows outward. The faint shell is every color a screen can show (saturation is drawn wider than lightness so hues separate). Drag to turn it.

Copley Gray with its complement, its triad and its tint and shade

Copley Gray
Triad #78918A
Triad #8A7891
Complement
50% tint
50% shade

Copley Gray in use

New collectionAutumn edit

Card body text stays dark for reading; copley gray carries the header and the button.

Shop nowTag

Headline in Copley Gray

A paragraph with a link in dark text, because this color is too light for text on white; use it for fills instead.

How it looks with color-vision deficiency

A simulation (Machado and colleagues, 2009) of how the color and its complement read without one type of cone.

Typical color vision#918A78
Protanopia (no red cones)#8E8977
Deuteranopia (no green cones)#908B79
Tritanopia (no blue cones)#958785

Contrast and readability

Pairing	Ratio	WCAG 2.2
as text on white	3.43:1	AA AA large AAA
as text on black	6.11:1	AA AA large AAA
white text on it	3.43:1	AA AA large AAA
black text on it	6.11:1	AA AA large AAA
on your background	3.00:1	AA AA large AAA

Try a background

Export

:root {
  --copley-gray: #918a78;
  --copley-gray-rgb: 145 138 120;
  --copley-gray-on: #000000;
}

On this page

Copley Gray carries the code HC-104 at Benjamin Moore. Its hex is #918A78, its RGB is 145, 138, 120, and its LRV is 25.65. The value is low, so walls in this color absorb about three quarters of the light that reaches them.

Numbers and what they imply

The HSL reading is hsl(43, 10%, 52%) and the OKLCH reading is oklch(63.4% 0.027 89). A hue of 89 degrees with chroma of 0.027 gives a yellow undertone on a warm neutral. The Lab reading, lab(57.7% 0.3 10.7), has an a value near zero, which means practically no red or green; the color's character comes almost entirely from the yellow axis. CMYK is 0%, 5%, 17%, 43%. Despite the name, this is closer to a khaki-leaning stone than a cool gray.

Pairing list from the brand

Benjamin Moore names four coordinating colors: White Dove (OC-17), Bennington Gray (HC-82), Sea Haze (2137-50) and Million Dollar Red (2003-10). Only White Dove has a page here. The red is the surprise, a high-energy accent in an otherwise quiet list, while Bennington Gray and Sea Haze go with the muted side.

Worked example

A home office with a south-facing window, a walnut desk and white built-ins gives this color a fair test. Strong daylight lifts the yellow, so the wall behind the desk will feel warm and a little golden by noon. Use White Dove on the shelving to keep the contrast gentle. For a line of text on a webpage background of #918A78, black measures 6.11:1 and white measures 3.43:1, so black passes the common 4.5:1 body-text bar and white does not.

The yellow undertone means this color tends to sit well with natural materials like jute, linen and unfinished wood. It is less happy beside pure cool grays, where it will look sandier than it did on its own. If you are choosing flooring or a countertop at the same time, carry the Copley Gray sample with you to the showroom and look at both in the same light.

Look-alikes

In the same brand, Sage Mountain (1488) is ΔE 2.7 and Kingsport Gray (HC-86) is 3.8, both related but visible. Driftwood (2107-40) at 7.3 is clearly different.

Sherwin-Williams has two entries at 2.5: Connected Gray (SW 6165) and Hardware (SW 6172). Those are closer than anything inside Benjamin Moore, though still visible side by side. Evergreen Fog (SW 9130) and Rushing River (SW 7746) are both 6.3, which is clearly different. Bring home real samples before deciding that a rival brand will stand in.