Dark Blue

Q: How do I use #1C23E3 in CSS?

You can use #1C23E3 in CSS with: background-color: #1C23E3; or color: #1C23E3; or as an RGB value: rgb(28, 35, 227). For print design, use CMYK: 88%, 85%, 0%, 11%.

#1C23E3

Dark Blue is a cool medium color with the hex code #1C23E3. This vibrant hue can be represented as RGB 28, 35, 227 in digital design or CMYK 88%, 85%, 0%, 11% for print applications. Find matching Pantone color.

Dark Blue color values

HEX: #1C23E3
RGB: 28, 35, 227
HSL: 238°, 78%, 50%
CMYK: 88, 85, 0, 11

Shades & tints

Darker Lighter

About this color

Dark Blue sits at 238° on the color wheel with 78% saturation and 50% lightness, placing it in the blue segment of the spectrum. At 78% 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, Dark Blue is rendered as rgb(28, 35, 227), where the blue channel is highest at 227, 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, Dark Blue translates to a CMYK breakdown of 88C 85M 0Y 11K. The low-to-moderate black value (11%) means the color's character in print comes primarily from its cyan ink content (88%), 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

Analogous

Triadic

Split-Complementary

How to use Dark Blue

CSS Variable

:root {
  --brand-primary: #1C23E3;
  --brand-primary-rgb: 28, 35, 227;
}

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

Tailwind Config

colors: {
  brand: '#1C23E3',
}

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

Print Design (CMYK)

C: 88%
M: 85%
Y: 0%
K: 11%

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

RGB for Screens

rgb(28, 35, 227)
rgba(28, 35, 227, 0.8)

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

Brands using similar hue

24 brand s with colors near 238° on the color wheel

Frequently asked questions

What color is #1C23E3?

#1C23E3 is Dark Blue, a cool medium color with RGB values of 28, 35, 227. It has a hue of 238°, 78% saturation, and 50% lightness in the HSL color space.

What is the RGB value of #1C23E3?

The RGB color code for #1C23E3 is rgb(28, 35, 227). This means it contains 28 red, 35 green, and 227 blue in the RGB color model.

Is Dark Blue a warm or cool color?

Dark Blue (#1C23E3) is a cool color with a hue between 120-300° on the color wheel.

How do I use #1C23E3 in CSS?

You can use #1C23E3 in CSS with: background-color: #1C23E3; or color: #1C23E3; or as an RGB value: rgb(28, 35, 227). For print design, use CMYK: 88%, 85%, 0%, 11%.