Astronaut Blue

Q: How do I use #0A385C in CSS?

You can use #0A385C in CSS with: background-color: #0A385C; or color: #0A385C; or as an RGB value: rgb(10, 56, 92). For print design, use CMYK: 89%, 39%, 0%, 64%.

#0A385C

Astronaut Blue is a cool dark color with the hex code #0A385C. This vibrant hue can be represented as RGB 10, 56, 92 in digital design or CMYK 89%, 39%, 0%, 64% for print applications. Find matching Pantone color.

Astronaut Blue color values

HEX: #0A385C
RGB: 10, 56, 92
HSL: 206°, 80%, 20%
CMYK: 89, 39, 0, 64

Shades & tints

Darker Lighter

About this color

Astronaut Blue sits at 206° on the color wheel with 80% saturation and 20% lightness, placing it in the blue segment of the spectrum. With saturation at 80%, this is a high-chroma color: the kind that anchors palettes and demands considered placement. The lower lightness gives it weight and depth, lending gravity to any palette it enters.

In digital environments, Astronaut Blue is rendered as rgb(10, 56, 92), where the blue channel is highest at 92, anchoring the color in the cool register. High saturation combined with low lightness creates deep, jewel-toned results — useful for premium UI elements, hover states, and focused interaction areas.

For print, Astronaut Blue translates to a CMYK breakdown of 89C 39M 0Y 64K. A substantial black component (64%) 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 Astronaut Blue

CSS Variable

:root {
  --brand-primary: #0A385C;
  --brand-primary-rgb: 10, 56, 92;
}

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

Tailwind Config

colors: {
  brand: '#0A385C',
}

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

Print Design (CMYK)

C: 89%
M: 39%
Y: 0%
K: 64%

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

RGB for Screens

rgb(10, 56, 92)
rgba(10, 56, 92, 0.8)

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

Brands using similar hue

24 brand s with colors near 206° on the color wheel

Frequently asked questions

What color is #0A385C?

#0A385C is Astronaut Blue, a cool dark color with RGB values of 10, 56, 92. It has a hue of 206°, 80% saturation, and 20% lightness in the HSL color space.

What is the RGB value of #0A385C?

The RGB color code for #0A385C is rgb(10, 56, 92). This means it contains 10 red, 56 green, and 92 blue in the RGB color model.

Is Astronaut Blue a warm or cool color?

Astronaut Blue (#0A385C) is a cool color with a hue between 120-300° on the color wheel.

How do I use #0A385C in CSS?

You can use #0A385C in CSS with: background-color: #0A385C; or color: #0A385C; or as an RGB value: rgb(10, 56, 92). For print design, use CMYK: 89%, 39%, 0%, 64%.