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Ultramarine

#2018B4

Ultramarine is a cool medium color with the hex code #2018B4. This vibrant hue can be represented as RGB 32, 24, 180 in digital design or CMYK 82%, 87%, 0%, 29% for print applications. Find matching Pantone color.

Ultramarine color values

HEX
#2018B4
RGB
32, 24, 180
HSL
243°, 76%, 40%
CMYK
82, 87, 0, 29

About this color

Ultramarine sits at 243° on the color wheel with 76% saturation and 40% lightness, placing it in the blue segment of the spectrum. At 76% saturation, the hue is fully legible and confident — richly chromatic without tipping into high-contrast territory. Its mid-range lightness positions it as a mid-tone: neither a background color nor a deep accent, but something in between.

In digital environments, Ultramarine is rendered as rgb(32, 24, 180), where the blue channel is highest at 180, producing a strongly blue character. The mid-range lightness and strong saturation make this versatile for both foreground and background roles, depending on what it is paired against.

For print, Ultramarine translates to a CMYK breakdown of 82C 87M 0Y 29K. With a moderate key (29%), 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 Ultramarine

CSS Variable

:root {
  --brand-primary: #2018B4;
  --brand-primary-rgb: 32, 24, 180;
}

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

Tailwind Config

colors: {
  brand: '#2018B4',
}

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

Print Design (CMYK)

C: 82%
M: 87%
Y: 0%
K: 29%

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

RGB for Screens

rgb(32, 24, 180)
rgba(32, 24, 180, 0.8)

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

Frequently asked questions

What color is #2018B4?
#2018B4 is Ultramarine, a cool medium color with RGB values of 32, 24, 180. It has a hue of 243°, 76% saturation, and 40% lightness in the HSL color space.
What is the RGB value of #2018B4?
The RGB color code for #2018B4 is rgb(32, 24, 180). This means it contains 32 red, 24 green, and 180 blue in the RGB color model.
Is Ultramarine a warm or cool color?
Ultramarine (#2018B4) is a cool color with a hue between 120-300° on the color wheel.
How do I use #2018B4 in CSS?
You can use #2018B4 in CSS with: background-color: #2018B4; or color: #2018B4; or as an RGB value: rgb(32, 24, 180). For print design, use CMYK: 82%, 87%, 0%, 29%.