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Outer Space

#31373D aka “JPMorgan Dark” by JPMorgan Chase

Outer Space is a cool dark color with the hex code #31373D. Also known as "JPMorgan Dark" by JPMorgan Chase . This muted hue can be represented as RGB 49, 55, 61 in digital design or CMYK 20%, 10%, 0%, 76% for print applications. Find matching Pantone color. Currently, 1 brand uses this color in their visual identity, making it a proven choice for professional branding and web design.

Outer Space color values

HEX
#31373D
RGB
49, 55, 61
HSL
210°, 11%, 22%
CMYK
20, 10, 0, 76

Shades & tints

Darker Lighter

About this color

Outer Space sits at 210° on the color wheel with 11% saturation and 22% lightness, placing it in the blue segment of the spectrum. Its restrained 11% 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(49, 55, 61), where the blue channel is highest at 61, though it sits close to the other channels. 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 20C 10M 0Y 76K. A substantial black component (76%) anchors this color in print. The remaining ink channels supplement rather than drive the hue, which keeps the result stable across different paper stocks. In brand applications, this exact value is specified as JPMorgan Dark.

Color harmonies

Complementary

Split-Complementary

How to use Outer Space

CSS Variable 

:root {
  --brand-primary: #31373D;
  --brand-primary-rgb: 49, 55, 61;
}

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

Tailwind Config 

colors: {
  brand: '#31373D',
}

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

Print Design (CMYK) 

C: 20%
M: 10%
Y: 0%
K: 76%

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

RGB for Screens 

rgb(49, 55, 61)
rgba(49, 55, 61, 0.8)

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

Brands using Outer Space

1 brand uses this color in their identity

JPMorgan Chase

Finance • Chermayeff & Geismar

Frequently asked questions

What color is #31373D?
#31373D is Outer Space, a cool dark color with RGB values of 49, 55, 61. It has a hue of 210°, 11% saturation, and 22% lightness in the HSL color space.
What is the RGB value of #31373D?
The RGB color code for #31373D is rgb(49, 55, 61). This means it contains 49 red, 55 green, and 61 blue in the RGB color model.
Is Outer Space a warm or cool color?
Outer Space (#31373D) is a cool color with a hue between 120-300° on the color wheel.
How do I use #31373D in CSS?
You can use #31373D in CSS with: background-color: #31373D; or color: #31373D; or as an RGB value: rgb(49, 55, 61). For print design, use CMYK: 20%, 10%, 0%, 76%.

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