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Mine Shaft

#333333

Mine Shaft is a warm dark color with the hex code #333333. This muted hue can be represented as RGB 51, 51, 51 in digital design or CMYK 0%, 0%, 0%, 80% for print applications. Find matching Pantone color.

Mine Shaft color values

HEX
#333333
RGB
51, 51, 51
HSL
0°, 0%, 20%
CMYK
0, 0, 0, 80

Shades & tints

Darker Lighter

About this color

Mine Shaft sits at 0° on the color wheel with 0% saturation and 20% lightness, placing it in the red 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(51, 51, 51), where the red channel dominates at 51, though the other channels keep the hue balanced. 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 0C 0M 0Y 80K. A substantial black component (80%) 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: #333333;
  --brand-primary-rgb: 51, 51, 51;
}

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

Tailwind Config 

colors: {
  brand: '#333333',
}

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

Print Design (CMYK) 

C: 0%
M: 0%
Y: 0%
K: 80%

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

RGB for Screens 

rgb(51, 51, 51)
rgba(51, 51, 51, 0.8)

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

Frequently asked questions

What color is #333333?
#333333 is Mine Shaft, a warm dark color with RGB values of 51, 51, 51. It has a hue of 0°, 0% saturation, and 20% lightness in the HSL color space.
What is the RGB value of #333333?
The RGB color code for #333333 is rgb(51, 51, 51). This means it contains 51 red, 51 green, and 51 blue in the RGB color model.
Is Mine Shaft a warm or cool color?
Mine Shaft (#333333) is a warm color with a hue between 0-60° or 300-360° on the color wheel.
How do I use #333333 in CSS?
You can use #333333 in CSS with: background-color: #333333; or color: #333333; or as an RGB value: rgb(51, 51, 51). For print design, use CMYK: 0%, 0%, 0%, 80%.

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