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Cerulean Blue

#4158BE

Cerulean Blue is a cool medium color with the hex code #4158BE. This moderately saturated hue can be represented as RGB 65, 88, 190 in digital design or CMYK 66%, 54%, 0%, 25% for print applications. Find matching Pantone color.

Cerulean Blue color values

HEX
#4158BE
RGB
65, 88, 190
HSL
229°, 49%, 50%
CMYK
66, 54, 0, 25

Shades & tints

Darker Lighter

About this color

Cerulean Blue sits at 229° on the color wheel with 49% saturation and 50% lightness, placing it in the blue segment of the spectrum. The moderate 49% saturation gives it enough color presence to register clearly without competing for dominance in a composition. 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, Cerulean Blue is rendered as rgb(65, 88, 190), where the blue channel is highest at 190, producing a strongly blue character. This cool mid-tone is a reliable choice for UI chrome, informational states, and contexts that call for a calm, readable presence.

For print, Cerulean Blue translates to a CMYK breakdown of 66C 54M 0Y 25K. The low-to-moderate black value (25%) means the color's character in print comes primarily from its cyan ink content (66%), with black serving as a supporting shadow tone. No brands in the brandkit.pro library currently specify this exact hex as a named brand color.

Color harmonies

Complementary

Split-Complementary

How to use Cerulean Blue

CSS Variable 

:root {
  --brand-primary: #4158BE;
  --brand-primary-rgb: 65, 88, 190;
}

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

Tailwind Config 

colors: {
  brand: '#4158BE',
}

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

Print Design (CMYK) 

C: 66%
M: 54%
Y: 0%
K: 25%

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

RGB for Screens 

rgb(65, 88, 190)
rgba(65, 88, 190, 0.8)

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

Brands using similar hue

24 brand s with colors near 229° on the color wheel

Instagram logo
Instagram
Okta logo
Okta
Samsung logo
Samsung
Patagonia logo
Patagonia

Frequently asked questions

What color is #4158BE?
#4158BE is Cerulean Blue, a cool medium color with RGB values of 65, 88, 190. It has a hue of 229°, 49% saturation, and 50% lightness in the HSL color space.
What is the RGB value of #4158BE?
The RGB color code for #4158BE is rgb(65, 88, 190). This means it contains 65 red, 88 green, and 190 blue in the RGB color model.
Is Cerulean Blue a warm or cool color?
Cerulean Blue (#4158BE) is a cool color with a hue between 120-300° on the color wheel.
How do I use #4158BE in CSS?
You can use #4158BE in CSS with: background-color: #4158BE; or color: #4158BE; or as an RGB value: rgb(65, 88, 190). For print design, use CMYK: 66%, 54%, 0%, 25%.

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