Deep Cerulean is a
cool medium color with the hex code #1B87B1.
This vibrant hue can be represented as RGB
27, 135, 177 in digital design or CMYK 85%, 24%, 0%, 31% for print applications.
Find matching Pantone color.
Deep Cerulean
#1B87B1
Deep Cerulean color values
- HEX
- #1B87B1
- RGB
- 27, 135, 177
- HSL
- 197°, 74%, 40%
- CMYK
- 85, 24, 0, 31
Shades & tints
Darker Lighter
About this color
Deep Cerulean sits at 197° on the color wheel with 74% saturation and 40% lightness, placing it in the blue segment of the spectrum. At 74% 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, Deep Cerulean is rendered as rgb(27, 135, 177), where the blue channel is highest at 177, anchoring the color in the cool register. 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, Deep Cerulean translates to a CMYK breakdown of 85C 24M 0Y 31K. With a moderate key (31%), 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.
Color harmonies
Complementary
Analogous
Triadic
Split-Complementary
How to use Deep Cerulean
CSS Variable
:root {
--brand-primary: #1B87B1;
--brand-primary-rgb: 27, 135, 177;
}Define as a CSS custom property for consistent theming across your site.
Tailwind Config
colors: {
brand: '#1B87B1',
}
Add to your Tailwind config to use classes like bg-brand.
Print Design (CMYK)
C: 85%
M: 24%
Y: 0%
K: 31%Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.
RGB for Screens
rgb(27, 135, 177)
rgba(27, 135, 177, 0.8)Use RGB notation for compatibility or add alpha channel for transparency.
Brands using similar hue
24 brand s with colors near 197° on the color wheel
Frequently asked questions
What color is #1B87B1?
#1B87B1 is Deep Cerulean, a cool medium color with RGB values of 27, 135, 177. It has a hue of 197°, 74%
saturation, and 40% lightness in the HSL color
space.
What is the RGB value of #1B87B1?
The RGB color code for #1B87B1 is rgb(27, 135, 177). This means it contains 27 red,
135 green, and 177 blue in the RGB color model.
Is Deep Cerulean a warm or cool color?
Deep Cerulean (#1B87B1) is a cool color with a hue between 120-300° on the color wheel.
How do I use #1B87B1 in CSS?
You can use #1B87B1 in CSS with:
background-color: #1B87B1; or color: #1B87B1; or as an RGB value: rgb(27, 135, 177). For print design, use CMYK: 85%, 24%, 0%, 31%.