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Green Kelp

#1F311B

Green Kelp is a neutral dark color with the hex code #1F311B. This muted hue can be represented as RGB 31, 49, 27 in digital design or CMYK 37%, 0%, 45%, 81% for print applications. Find matching Pantone color.

Green Kelp color values

HEX
#1F311B
RGB
31, 49, 27
HSL
109°, 29%, 15%
CMYK
37, 0, 45, 81

Shades & tints

Darker Lighter

About this color

Green Kelp sits at 109° on the color wheel with 29% saturation and 15% lightness, placing it in the green segment of the spectrum. Its restrained 29% saturation keeps the hue subtle — present but not assertive, making it easy to layer over or under more expressive colors. Near-black lightness makes it read as a deep, absorptive tone — color is implied more than seen.

In digital environments, Green Kelp is rendered as rgb(31, 49, 27), where the green channel leads at 49, 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, Green Kelp translates to a CMYK breakdown of 37C 0M 45Y 81K. The dominant black channel (81%) 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 Green Kelp

CSS Variable 

:root {
  --brand-primary: #1F311B;
  --brand-primary-rgb: 31, 49, 27;
}

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

Tailwind Config 

colors: {
  brand: '#1F311B',
}

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

Print Design (CMYK) 

C: 37%
M: 0%
Y: 45%
K: 81%

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

RGB for Screens 

rgb(31, 49, 27)
rgba(31, 49, 27, 0.8)

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

Brands using similar hue

5 brand s with colors near 109° on the color wheel

Pixar logo
Pixar
Heineken logo
Heineken
Rivian logo
Rivian
Wise logo
Wise

Frequently asked questions

What color is #1F311B?
#1F311B is Green Kelp, a neutral dark color with RGB values of 31, 49, 27. It has a hue of 109°, 29% saturation, and 15% lightness in the HSL color space.
What is the RGB value of #1F311B?
The RGB color code for #1F311B is rgb(31, 49, 27). This means it contains 31 red, 49 green, and 27 blue in the RGB color model.
Is Green Kelp a warm or cool color?
Green Kelp (#1F311B) is a neutral color, sitting between warm and cool on the color wheel.
How do I use #1F311B in CSS?
You can use #1F311B in CSS with: background-color: #1F311B; or color: #1F311B; or as an RGB value: rgb(31, 49, 27). For print design, use CMYK: 37%, 0%, 45%, 81%.

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