Outer Space is a
cool dark color with the hex code #273F3F.
This muted hue can be represented as RGB
39, 63, 63 in digital design or CMYK 38%, 0%, 0%, 75% for print applications.
Find matching Pantone color.
Outer Space
#273F3F
Outer Space color values
- HEX
- #273F3F
- RGB
- 39, 63, 63
- HSL
- 180°, 24%, 20%
- CMYK
- 38, 0, 0, 75
Shades & tints
Darker Lighter
About this color
Outer Space sits at 180° on the color wheel with 24% saturation and 20% lightness, placing it in the cyan segment of the spectrum. Its restrained 24% saturation keeps the hue subtle — present but not assertive, making it easy to layer over or under more expressive colors. The lower lightness gives it weight and depth, lending gravity to any palette it enters.
In digital environments, Outer Space is rendered as rgb(39, 63, 63), where the green channel leads at 63, 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, Outer Space translates to a CMYK breakdown of 38C 0M 0Y 75K. A substantial black component (75%) 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
Analogous
Triadic
Split-Complementary
How to use Outer Space
CSS Variable
:root {
--brand-primary: #273F3F;
--brand-primary-rgb: 39, 63, 63;
}Define as a CSS custom property for consistent theming across your site.
Tailwind Config
colors: {
brand: '#273F3F',
}
Add to your Tailwind config to use classes like bg-brand.
Print Design (CMYK)
C: 38%
M: 0%
Y: 0%
K: 75%Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.
RGB for Screens
rgb(39, 63, 63)
rgba(39, 63, 63, 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
Frequently asked questions
What color is #273F3F?
#273F3F is Outer Space, a cool dark color with RGB values of 39, 63, 63. It has a hue of 180°, 24%
saturation, and 20% lightness in the HSL color
space.
What is the RGB value of #273F3F?
The RGB color code for #273F3F is rgb(39, 63, 63). This means it contains 39 red,
63 green, and 63 blue in the RGB color model.
Is Outer Space a warm or cool color?
Outer Space (#273F3F) is a cool color with a hue between 120-300° on the color wheel.
How do I use #273F3F in CSS?
You can use #273F3F in CSS with:
background-color: #273F3F; or color: #273F3F; or as an RGB value: rgb(39, 63, 63). For print design, use CMYK: 38%, 0%, 0%, 75%.