What color is #0B2828?

#0B2828 is Firefly, a cool dark color with RGB values of 11, 40, 40. It has a hue of 180°, 57% saturation, and 10% lightness in the HSL color space.

What is the RGB value of #0B2828?

The RGB color code for #0B2828 is rgb(11, 40, 40). This means it contains 11 red, 40 green, and 40 blue in the RGB color model.

Is Firefly a warm or cool color?

Firefly (#0B2828) is a cool color with a hue between 120-300° on the color wheel.

How do I use #0B2828 in CSS?

You can use #0B2828 in CSS with: background-color: #0B2828; or color: #0B2828; or as an RGB value: rgb(11, 40, 40). For print design, use CMYK: 73%, 0%, 0%, 84%.

Firefly

#0B2828

Firefly is a cool dark color with the hex code #0B2828. This moderately saturated hue can be represented as RGB 11, 40, 40 in digital design or CMYK 73%, 0%, 0%, 84% for print applications. Find matching Pantone color.

Firefly color values

HEX: #0B2828
RGB: 11, 40, 40
HSL: 180°, 57%, 10%
CMYK: 73, 0, 0, 84

Shades & tints

Darker Lighter

About this color

Firefly sits at 180° on the color wheel with 57% saturation and 10% lightness, placing it in the cyan segment of the spectrum. The moderate 57% saturation gives it enough color presence to register clearly without competing for dominance in a composition. Near-black lightness makes it read as a deep, absorptive tone — color is implied more than seen.

In digital environments, Firefly is rendered as rgb(11, 40, 40), where the green channel leads at 40, with red and blue channels close behind. This cool mid-tone is a reliable choice for UI chrome, informational states, and contexts that call for a calm, readable presence.

For print, Firefly translates to a CMYK breakdown of 73C 0M 0Y 84K. The dominant black channel (84%) 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

Analogous

Triadic

Split-Complementary

How to use Firefly

CSS Variable

:root {
  --brand-primary: #0B2828;
  --brand-primary-rgb: 11, 40, 40;
}

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

Tailwind Config

colors: {
  brand: '#0B2828',
}

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

Print Design (CMYK)

C: 73%
M: 0%
Y: 0%
K: 84%

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

RGB for Screens

rgb(11, 40, 40)
rgba(11, 40, 40, 0.8)

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

Brands using similar hue

24 brand s with colors near 180° on the color wheel