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

Sherwin-Williams Thunder Gray (SW 7645): hex #57534C, LRV 8.811

Thunder Gray (SW 7645) from Sherwin-Williams is #57534C with an LRV of 8.811. Its undertone reads as yellow within a warm neutral.

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

Updated November 11, 2026

Sherwin-WilliamsThunder GraySW 7645

Hex: #57534C
RGB: 87, 83, 76
LRV: 8.811
Undertone: Warm neutral, yellow undertone

LRV 8.811. Very dark: close to black on the wall; use where you want drama or contrast.

A neutral with a yellow cast (OKLCH hue 82°, chroma 0.012). Expect the yellow to show more in warm evening light and next to cooler whites.

Coordinating colors Sherwin-Williams suggests

Origami WhiteSW 7636
NuanceSW 7049
Analytical GraySW 7051

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 swatchThunder Graymedium-dark gray

HEX: #57534C
RGB: rgb(87, 83, 76)
HSL: hsl(38, 7%, 32%)

Best text on it: white at 7.64:1

Build a palette Make a gradient Check contrast Wallpaper

Thunder Gray#57534C

Every code for Thunder Gray

HEX#57534C
RGBrgb(87, 83, 76)
HSLhsl(38, 7%, 32%)
HSV38°, 13%, 34%
CMYK0%, 5%, 13%, 66%
Lablab(35.5% 0.7 4.7)
OKLCHoklch(44.4% 0.012 81.8)
Decimal5722956

Tints, shades and tones

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

90%#EEEEED
80%#DDDDDB
70%#CDCBC9
60%#BCBAB7
50%#ABA9A6
40%#9A9894
30%#898782
20%#797570
10%#68645E
Base#57534C
10%#4E4B44
20%#46423D
30%#3D3A35
40%#34322E
50%#2C2A26
60%#23211E
70%#1A1917
80%#11110F
90%#090808

Tones (mixed with gray)

10%#5B5851
20%#5F5C56
30%#63615C
40%#676561
50%#6C6A66
60%#706E6B
70%#747370
80%#787776
90%#7C7C7B

Matching colors

Complementary

#57534C
#4C5057

Analogous

#574E4C
#57534C
#56574C

Triadic

#57534C
#4C5753
#534C57

Split complementary

#57534C
#4C5557
#4E4C57

Tetradic (square)

#57534C
#4C574E
#4C5057
#574C55

Monochromatic

#0B0A0A
#2E2C28
#57534C
#807A70
#A5A097

Thunder 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.

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

Thunder Gray
Triad #4C5753
Triad #534C57
Complement
50% tint
50% shade

Thunder Gray in use

New collectionAutumn edit

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

Shop nowTag

Headline in Thunder Gray

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#57534C
Protanopia (no red cones)#55534C
Deuteranopia (no green cones)#56544C
Tritanopia (no blue cones)#595251

Contrast and readability

Pairing	Ratio	WCAG 2.2
as text on white	7.64:1	AA AA large AAA
as text on black	2.74:1	AA AA large AAA
white text on it	7.64:1	AA AA large AAA
black text on it	2.74:1	AA AA large AAA
on your background	6.67:1	AA AA large AAA

Try a background

Export

:root {
  --thunder-gray: #57534c;
  --thunder-gray-rgb: 87 83 76;
  --thunder-gray-on: #ffffff;
}

On this page

Thunder Gray (SW 7645) is hex #57534C, with RGB 87, 83, 76. The name says gray, and the numbers agree with a caveat: there is a faint warm lean underneath.

Numbers and what they imply

OKLCH is oklch(44.4% 0.012 82). Chroma of 0.012 is very low, so it counts as a neutral, and a hue of 82 degrees gives the reading of a warm neutral with a yellow undertone. At LRV 8.811 it counts as very dark, nearly black once it is on a wall. Colors this deep do not reflect much, so a room painted in it will rely heavily on lamps and on any pale surfaces for brightness. The yellow cast tends to grow under lamps after dark and next to crisp whites.

Worked example

Think of a dining room with a north window and a plaster-white ceiling. Walls in Thunder Gray give an enclosed, evening feel, and a pale trim color keeps the doorways visible. Use warm bulbs and the room will lean brown-gray; use cool ones and the faint yellow may recede. If you only want a hint of this depth, paint the lower half of the wall and leave the top in a lighter shade from the coordinating list.

Here the contrast flips: white text on #57534C reaches 7.64:1 and black text only 2.74:1. That makes light lettering the better choice for a button, label or menu printed on this shade.

What the brand pairs with it

Sherwin-Williams lists Origami White (SW 7636), Nuance (SW 7049) and Analytical Gray (SW 7051). None has a page here. Origami White is the obvious light partner for trim, while Nuance and Analytical Gray give you a step between the two extremes if the jump from wall to trim feels abrupt.

Near neighbors and cousins

In the same brand, Urbane Bronze (SW 7048) is ΔE 1.2, close enough that two walls would look alike. Black Fox (SW 7020) is 4.1 and Peppercorn (SW 7674) is 4.6, both related but visible.

Benjamin Moore's Silhouette (AF-655) is 2.9, close but visible. Wrought Iron (2124-10) is 6.2, Kendall Charcoal (HC-166) is 7.1 and Graphite (1603) is 7.3, which are clearly different. Even for the near ones, hold samples side by side first.

As a rule, a color this dark is less forgiving of uneven application, so plan for good lighting while you paint and for a second coat. A flat look at the end depends as much on the prep as on the can.