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Mine Shaft

#2F3337

Mine Shaft is a cool dark color with the hex code #2F3337. This muted hue can be represented as RGB 47, 51, 55 in digital design or CMYK 15%, 7%, 0%, 78% for print applications. Find matching Pantone color.

Mine Shaft color values

HEX
#2F3337
RGB
47, 51, 55
HSL
210°, 8%, 20%
CMYK
15, 7, 0, 78

Shades & tints

Darker Lighter

About this color

Mine Shaft sits at 210° on the color wheel with 8% saturation and 20% lightness, placing it in the blue segment of the spectrum. At near-zero saturation, it reads as a pure gray, with hue playing almost no role in its character. The lower lightness gives it weight and depth, lending gravity to any palette it enters.

In digital environments, Mine Shaft is rendered as rgb(47, 51, 55), where the blue channel is highest at 55, though it sits close to the other channels. Low saturation at this depth produces the kind of sophisticated, near-neutral dark that works for application shells, sidebars, and dark-mode base layers.

For print, Mine Shaft translates to a CMYK breakdown of 15C 7M 0Y 78K. A substantial black component (78%) anchors this color in print. The remaining ink channels supplement rather than drive the hue, which keeps the result stable across different paper stocks. No brands in the brandkit.pro library currently specify this exact hex as a named brand color.

Color harmonies

Complementary

Split-Complementary

How to use Mine Shaft

CSS Variable 

:root {
  --brand-primary: #2F3337;
  --brand-primary-rgb: 47, 51, 55;
}

Define as a CSS custom property for consistent theming across your site.

Tailwind Config 

colors: {
  brand: '#2F3337',
}

Add to your Tailwind config to use classes like bg-brand.

Print Design (CMYK) 

C: 15%
M: 7%
Y: 0%
K: 78%

Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.

RGB for Screens 

rgb(47, 51, 55)
rgba(47, 51, 55, 0.8)

Use RGB notation for compatibility or add alpha channel for transparency.

Frequently asked questions

What color is #2F3337?
#2F3337 is Mine Shaft, a cool dark color with RGB values of 47, 51, 55. It has a hue of 210°, 8% saturation, and 20% lightness in the HSL color space.
What is the RGB value of #2F3337?
The RGB color code for #2F3337 is rgb(47, 51, 55). This means it contains 47 red, 51 green, and 55 blue in the RGB color model.
Is Mine Shaft a warm or cool color?
Mine Shaft (#2F3337) is a cool color with a hue between 120-300° on the color wheel.
How do I use #2F3337 in CSS?
You can use #2F3337 in CSS with: background-color: #2F3337; or color: #2F3337; or as an RGB value: rgb(47, 51, 55). For print design, use CMYK: 15%, 7%, 0%, 78%.

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