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Congress Blue

#0B428E

Congress Blue is a cool dark color with the hex code #0B428E. This vibrant hue can be represented as RGB 11, 66, 142 in digital design or CMYK 92%, 54%, 0%, 44% for print applications. Find matching Pantone color.

Congress Blue color values

HEX
#0B428E
RGB
11, 66, 142
HSL
215°, 86%, 30%
CMYK
92, 54, 0, 44

About this color

Congress Blue sits at 215° on the color wheel with 86% saturation and 30% lightness, placing it in the blue segment of the spectrum. With saturation at 86%, 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, Congress Blue is rendered as rgb(11, 66, 142), where the blue channel is highest at 142, producing a strongly blue character. High saturation combined with low lightness creates deep, jewel-toned results — useful for premium UI elements, hover states, and focused interaction areas.

For print, Congress Blue translates to a CMYK breakdown of 92C 54M 0Y 44K. With a moderate key (44%), this color uses black to deepen the chromatic channels rather than replace them, a profile that typically holds up well in both offset and digital print. No brands in the brandkit.pro library currently specify this exact hex as a named brand color.

How to use Congress Blue

CSS Variable

:root {
  --brand-primary: #0B428E;
  --brand-primary-rgb: 11, 66, 142;
}

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

Tailwind Config

colors: {
  brand: '#0B428E',
}

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

Print Design (CMYK)

C: 92%
M: 54%
Y: 0%
K: 44%

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

RGB for Screens

rgb(11, 66, 142)
rgba(11, 66, 142, 0.8)

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

Frequently asked questions

What color is #0B428E?
#0B428E is Congress Blue, a cool dark color with RGB values of 11, 66, 142. It has a hue of 215°, 86% saturation, and 30% lightness in the HSL color space.
What is the RGB value of #0B428E?
The RGB color code for #0B428E is rgb(11, 66, 142). This means it contains 11 red, 66 green, and 142 blue in the RGB color model.
Is Congress Blue a warm or cool color?
Congress Blue (#0B428E) is a cool color with a hue between 120-300° on the color wheel.
How do I use #0B428E in CSS?
You can use #0B428E in CSS with: background-color: #0B428E; or color: #0B428E; or as an RGB value: rgb(11, 66, 142). For print design, use CMYK: 92%, 54%, 0%, 44%.