Cobalt

Q: How do I use #123387 in CSS?

You can use #123387 in CSS with: background-color: #123387; or color: #123387; or as an RGB value: rgb(18, 51, 135). For print design, use CMYK: 87%, 62%, 0%, 47%.

#123387

Cobalt is a cool dark color with the hex code #123387. This vibrant hue can be represented as RGB 18, 51, 135 in digital design or CMYK 87%, 62%, 0%, 47% for print applications. Find matching Pantone color.

Cobalt Color Values

HEX: #123387
RGB: 18, 51, 135
HSL: 223°, 76%, 30%
CMYK: 87, 62, 0, 47

Shades & Tints

Darker Lighter

About this color

Cobalt sits at 223° on the color wheel, placing it in the cool color family, typically conveying calm and professionalism. With 76% saturation and 30% lightness, this vibrant dark hue conveys richness and intensity.

In digital design, cool colors like Cobalt work well for backgrounds, navigation, and establishing trust. Dark colors provide excellent contrast for text overlays and premium brand aesthetics.

When using Cobalt in print, the CMYK breakdown of 87%, 62%, 0%, 47% ensures accurate color reproduction. This balanced CMYK profile should reproduce consistently across different printing methods.

Color Harmonies

Complementary

Analogous

Triadic

Split-Complementary

How to use Cobalt

CSS Variable

:root {
  --brand-primary: #123387;
  --brand-primary-rgb: 18, 51, 135;
}

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

Tailwind Config

colors: {
  brand: '#123387',
}

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

Print Design (CMYK)

C: 87%
M: 62%
Y: 0%
K: 47%

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

RGB for Screens

rgb(18, 51, 135)
rgba(18, 51, 135, 0.8)

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

Brands Using the Same Hue

18 brand s with colors near 223° on the color wheel

Frequently Asked Questions

What color is #123387?

#123387 is Cobalt, a cool dark color with RGB values of 18, 51, 135. It has a hue of 223°, 76% saturation, and 30% lightness in the HSL color space.

What is the RGB value of #123387?

The RGB color code for #123387 is rgb(18, 51, 135). This means it contains 18 red, 51 green, and 135 blue in the RGB color model.

Is Cobalt a warm or cool color?

Cobalt (#123387) is a cool color with a hue between 120-300° on the color wheel.

How do I use #123387 in CSS?

You can use #123387 in CSS with: background-color: #123387; or color: #123387; or as an RGB value: rgb(18, 51, 135). For print design, use CMYK: 87%, 62%, 0%, 47%.