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Aztec

#181B18

Aztec is a cool dark color with the hex code #181B18. This muted hue can be represented as RGB 24, 27, 24 in digital design or CMYK 11%, 0%, 11%, 89% for print applications. Find matching Pantone color.

Aztec color values

HEX
#181B18
RGB
24, 27, 24
HSL
120°, 6%, 10%
CMYK
11, 0, 11, 89

Shades & tints

Darker Lighter

About this color

Aztec sits at 120° on the color wheel with 6% saturation and 10% lightness, placing it in the green segment of the spectrum. At near-zero saturation, it reads as a pure near-black neutral, with hue playing almost no role in its character. Near-black lightness makes it read as a deep, absorptive tone — color is implied more than seen.

In digital environments, Aztec is rendered as rgb(24, 27, 24), where the green channel leads at 27, with red and blue channels close behind. 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, Aztec translates to a CMYK breakdown of 11C 0M 11Y 89K. The dominant black channel (89%) does most of the tonal work here — cyan, magenta, and yellow contribute minimally, so the printed result will be a deep, near-neutral tone that reads differently from its screen equivalent. 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 Aztec

CSS Variable 

:root {
  --brand-primary: #181B18;
  --brand-primary-rgb: 24, 27, 24;
}

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

Tailwind Config 

colors: {
  brand: '#181B18',
}

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

Print Design (CMYK) 

C: 11%
M: 0%
Y: 11%
K: 89%

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

RGB for Screens 

rgb(24, 27, 24)
rgba(24, 27, 24, 0.8)

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

Frequently asked questions

What color is #181B18?
#181B18 is Aztec, a cool dark color with RGB values of 24, 27, 24. It has a hue of 120°, 6% saturation, and 10% lightness in the HSL color space.
What is the RGB value of #181B18?
The RGB color code for #181B18 is rgb(24, 27, 24). This means it contains 24 red, 27 green, and 24 blue in the RGB color model.
Is Aztec a warm or cool color?
Aztec (#181B18) is a cool color with a hue between 120-300° on the color wheel.
How do I use #181B18 in CSS?
You can use #181B18 in CSS with: background-color: #181B18; or color: #181B18; or as an RGB value: rgb(24, 27, 24). For print design, use CMYK: 11%, 0%, 11%, 89%.

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