Prussian Blue is a
cool dark color with the hex code #0B365B.
This vibrant hue can be represented as RGB
11, 54, 91 in digital design or CMYK 88%, 41%, 0%, 64% for print applications.
Find matching Pantone color.
Prussian Blue
#0B365B
Prussian Blue color values
- HEX
- #0B365B
- RGB
- 11, 54, 91
- HSL
- 208°, 78%, 20%
- CMYK
- 88, 41, 0, 64
Shades & tints
Darker Lighter
About this color
Prussian Blue sits at 208° on the color wheel with 78% saturation and 20% lightness, placing it in the blue segment of the spectrum. At 78% saturation, the hue is fully legible and confident — richly chromatic without tipping into high-contrast territory. The lower lightness gives it weight and depth, lending gravity to any palette it enters.
In digital environments, Prussian Blue is rendered as rgb(11, 54, 91), where the blue channel is highest at 91, 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, Prussian Blue translates to a CMYK breakdown of 88C 41M 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 Prussian Blue
CSS Variable
:root {
--brand-primary: #0B365B;
--brand-primary-rgb: 11, 54, 91;
}Define as a CSS custom property for consistent theming across your site.
Tailwind Config
colors: {
brand: '#0B365B',
}
Add to your Tailwind config to use classes like bg-brand.
Print Design (CMYK)
C: 88%
M: 41%
Y: 0%
K: 64%Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.
RGB for Screens
rgb(11, 54, 91)
rgba(11, 54, 91, 0.8)Use RGB notation for compatibility or add alpha channel for transparency.
Brands using similar hue
24 brand s with colors near 208° on the color wheel
Frequently asked questions
What color is #0B365B?
#0B365B is Prussian Blue, a cool dark color with RGB values of 11, 54, 91. It has a hue of 208°, 78%
saturation, and 20% lightness in the HSL color
space.
What is the RGB value of #0B365B?
The RGB color code for #0B365B is rgb(11, 54, 91). This means it contains 11 red,
54 green, and 91 blue in the RGB color model.
Is Prussian Blue a warm or cool color?
Prussian Blue (#0B365B) is a cool color with a hue between 120-300° on the color wheel.
How do I use #0B365B in CSS?
You can use #0B365B in CSS with:
background-color: #0B365B; or color: #0B365B; or as an RGB value: rgb(11, 54, 91). For print design, use CMYK: 88%, 41%, 0%, 64%.