Skip to main content

Steel Blue

#42678A

Steel Blue is a cool medium color with the hex code #42678A. This moderately saturated hue can be represented as RGB 66, 103, 138 in digital design or CMYK 52%, 25%, 0%, 46% for print applications. Find matching Pantone color.

Steel Blue Color Values

HEX
#42678A
RGB
66, 103, 138
HSL
209°, 35%, 40%
CMYK
52, 25, 0, 46

About this color

Steel Blue sits at 209° on the color wheel, placing it in the cool color family, typically conveying calm and professionalism. With 35% saturation and 40% lightness, this moderately saturated medium hue balances visibility with restraint.

In digital design, cool colors like Steel Blue work well for backgrounds, navigation, and establishing trust. Medium-toned colors offer versatility across both light and dark design themes.

When using Steel Blue in print, the CMYK breakdown of 52%, 25%, 0%, 46% ensures accurate color reproduction. This balanced CMYK profile should reproduce consistently across different printing methods.

How to use Steel Blue

CSS Variable

:root {
  --brand-primary: #42678A;
  --brand-primary-rgb: 66, 103, 138;
}

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

Tailwind Config

colors: {
  brand: '#42678A',
}

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

Print Design (CMYK)

C: 52%
M: 25%
Y: 0%
K: 46%

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

RGB for Screens

rgb(66, 103, 138)
rgba(66, 103, 138, 0.8)

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

Frequently Asked Questions

What color is #42678A?
#42678A is Steel Blue, a cool medium color with RGB values of 66, 103, 138. It has a hue of 209°, 35% saturation, and 40% lightness in the HSL color space.
What is the RGB value of #42678A?
The RGB color code for #42678A is rgb(66, 103, 138). This means it contains 66 red, 103 green, and 138 blue in the RGB color model.
Is Steel Blue a warm or cool color?
Steel Blue (#42678A) is a cool color with a hue between 120-300° on the color wheel.
How do I use #42678A in CSS?
You can use #42678A in CSS with: background-color: #42678A; or color: #42678A; or as an RGB value: rgb(66, 103, 138). For print design, use CMYK: 52%, 25%, 0%, 46%.