Paint colors · Sherwin-Williams, as published by the brand

Copper Mountain SW 6356: hex #A6613C, LRV and undertone

Copper Mountain (SW 6356) from Sherwin-Williams is #A6613C with an LRV of 17.034. It measures as a clear orange-peach, warm and not a neutral; white text reaches 4.77:1.

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

Updated November 11, 2026

Sherwin-WilliamsCopper MountainSW 6356

Hex: #A6613C
RGB: 166, 97, 60
LRV: 17.034
Undertone: Orange-peach, warm

LRV 17.034. Very dark: close to black on the wall; use where you want drama or contrast.

A clear orange-peach color (OKLCH hue 48°, chroma 0.103), not a neutral.

Coordinating colors Sherwin-Williams suggests

Intricate IvorySW 6350
Aged WhiteSW 9180
CaramelizedSW 9186

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 Sherwin-Williams 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 Sherwin-Williams.

ColorPlum swatchCopper Mountainmedium-dark, moderately saturated orange

HEX: #A6613C
RGB: rgb(166, 97, 60)
HSL: hsl(21, 47%, 44%)

Best text on it: white at 4.77:1

Build a palette Make a gradient Check contrast Wallpaper

Copper Mountain#A6613C

Every code for Copper Mountain

HEX#A6613C
RGBrgb(166, 97, 60)
HSLhsl(21, 47%, 44%)
HSV21°, 64%, 65%
CMYK0%, 42%, 64%, 35%
Lablab(48.7% 26.2 33.4)
OKLCHoklch(56.3% 0.103 47.9)
Decimal10903868

Tints, shades and tones

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

90%#F6EFEC
80%#EDDFD8
70%#E4D0C5
60%#DBC0B1
50%#D3B09E
40%#CAA08A
30%#C19077
20%#B88163
10%#AF7150
Base#A6613C
10%#955736
20%#854E30
30%#74442A
40%#643A24
50%#53311E
60%#422718
70%#321D12
80%#21130C
90%#110A06

Tones (mixed with gray)

10%#A26443
20%#9E674A
30%#9B6A50
40%#976D57
50%#93715E
60%#8F7465
70%#8B776C
80%#887A72
90%#847D79

Matching colors

Complementary

#A6613C
#3C81A6

Analogous

#A63C4C
#A6613C
#A6963C

Triadic

#A6613C
#3CA661
#613CA6

Split complementary

#A6613C
#3CA696
#3C4CA6

Tetradic (square)

#A6613C
#4CA63C
#3C81A6
#963CA6

Monochromatic

#361F13
#6E4028
#A6613C
#C88967
#DCB49F

Copper Mountain 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.

Copper Mountain with its complement, its triad and its tint and shade

Copper Mountain
Triad #3CA661
Triad #613CA6
Complement
50% tint
50% shade

Copper Mountain in use

New collectionAutumn edit

Card body text stays dark for reading; copper mountain carries the header and the button.

Shop nowTag

Headline in Copper Mountain

A paragraph with a link set in this color, which is dark enough for text on white.

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#A6613C
Protanopia (no red cones)#746939
Deuteranopia (no green cones)#85783B
Tritanopia (no blue cones)#B55458

Contrast and readability

Pairing	Ratio	WCAG 2.2
as text on white	4.77:1	AA AA large AAA
as text on black	4.39:1	AA AA large AAA
white text on it	4.77:1	AA AA large AAA
black text on it	4.39:1	AA AA large AAA
on your background	4.17:1	AA AA large AAA

Try a background

Export

:root {
  --copper-mountain: #a6613c;
  --copper-mountain-rgb: 166 97 60;
  --copper-mountain-on: #ffffff;
}

On this page

Copper Mountain, Sherwin-Williams SW 6356, is a burnished orange-brown with the hex value #A6613C and an RGB of 166, 97, 60. Unlike most paints that get asked about on this site, there is nothing neutral about it. Red towers over blue by more than a hundred steps.

What the codes say

In HSL, the color is hue 21°, 47% saturation and 44% lightness. The OKLCH values are 56.3% lightness, chroma 0.103 and hue 47.9. A chroma of 0.103 is about seven times that of Downing Slate or Copen Blue, which shows how much saturation this color carries. The file's undertone reading is simply orange-peach, warm, and says it is not a neutral.

Its LRV is 17.034. That is low, so the color absorbs most of the light that reaches it. Use it where you want depth: a front door, a fireplace surround or a single wall behind a bed.

Light and context

Because the hue is so warm, the same paint will glow in late sun and turn browner in shade. Next to green foliage or a blue-gray exterior it should look richer, since it sits across the wheel from those.

Worked example

Suppose you are painting a front door on a house with pale siding. The door faces west, so it gets direct afternoon sun. Copper Mountain at an LRV of 17.034 will keep its depth in the glare instead of washing out. Sherwin-Williams lists Intricate Ivory (SW 6350), Aged White (SW 9180) and Caramelized (SW 9186) as coordinating colors. Aged White or Intricate Ivory could serve as a trim around the door, and Caramelized is a lighter relative for a planter or house numbers.

For a number plate or a door label, the text contrast is nearly even: white is 4.77:1 and black is 4.39:1. White is the better choice and clears the 4.5:1 AA threshold; black falls just under.

How far from the rest

No other listed color comes close. In Sherwin-Williams, Porpoise (SW 7047) is 19.7 away, Urbane Bronze (SW 7048) is 24.1 and Dried Thyme (SW 6186) is 25.5. From Benjamin Moore, Kendall Charcoal (HC-166) is 22.8, Sage Mountain (1488) is 23.3 and Pashmina (AF-100) is 28.

Copper Mountain has no sibling in the same weight class. Every one of those is far past 5, so these are not substitutes. They are different colors that merely happen to be the nearest entries in our data, and a physical sample is the only reliable way to judge a real alternative. If you like the idea of a burnt, earthy accent, test the paint beside your actual wood tones, since copper and warm wood can either harmonize or compete.