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Cerulean

#00BCE4

Cerulean is a cool medium color with the hex code #00BCE4. This vibrant hue can be represented as RGB 0, 188, 228 in digital design or CMYK 100%, 18%, 0%, 11% for print applications. Find matching Pantone color.

Cerulean color values

HEX
#00BCE4
RGB
0, 188, 228
HSL
191°, 100%, 45%
CMYK
100, 18, 0, 11

Shades & tints

Darker Lighter

About this color

Cerulean sits at 191° on the color wheel with 100% saturation and 45% lightness, placing it in the cyan segment of the spectrum. With saturation at 100%, this is a high-chroma color: the kind that anchors palettes and demands considered placement. 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 is rendered as rgb(0, 188, 228), where the blue channel is highest at 228, 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, Cerulean translates to a CMYK breakdown of 100C 18M 0Y 11K. The low-to-moderate black value (11%) means the color's character in print comes primarily from its cyan ink content (100%), 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

CSS Variable 

:root {
  --brand-primary: #00BCE4;
  --brand-primary-rgb: 0, 188, 228;
}

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

Tailwind Config 

colors: {
  brand: '#00BCE4',
}

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

Print Design (CMYK) 

C: 100%
M: 18%
Y: 0%
K: 11%

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

RGB for Screens 

rgb(0, 188, 228)
rgba(0, 188, 228, 0.8)

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

Brands using similar hue

24 brand s with colors near 191° on the color wheel

Cisco logo
Cisco
HubSpot logo
HubSpot
Slack logo
Slack
AMD logo
AMD

Frequently asked questions

What color is #00BCE4?
#00BCE4 is Cerulean, a cool medium color with RGB values of 0, 188, 228. It has a hue of 191°, 100% saturation, and 45% lightness in the HSL color space.
What is the RGB value of #00BCE4?
The RGB color code for #00BCE4 is rgb(0, 188, 228). This means it contains 0 red, 188 green, and 228 blue in the RGB color model.
Is Cerulean a warm or cool color?
Cerulean (#00BCE4) is a cool color with a hue between 120-300° on the color wheel.
How do I use #00BCE4 in CSS?
You can use #00BCE4 in CSS with: background-color: #00BCE4; or color: #00BCE4; or as an RGB value: rgb(0, 188, 228). For print design, use CMYK: 100%, 18%, 0%, 11%.

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