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Blue Smoke

#738C8A

Blue Smoke is a cool medium color with the hex code #738C8A. This muted hue can be represented as RGB 115, 140, 138 in digital design or CMYK 18%, 0%, 1%, 45% for print applications. Find matching Pantone color.

Blue Smoke color values

HEX
#738C8A
RGB
115, 140, 138
HSL
175°, 10%, 50%
CMYK
18, 0, 1, 45

Shades & tints

Darker Lighter

About this color

Blue Smoke sits at 175° on the color wheel with 10% saturation and 50% lightness, placing it in the cyan segment of the spectrum. Its restrained 10% saturation keeps the hue subtle — present but not assertive, making it easy to layer over or under more expressive colors. 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, Blue Smoke is rendered as rgb(115, 140, 138), where the green channel leads at 140, with red and blue channels close behind. This muted, medium-toned character adapts well to supporting roles: borders, disabled states, secondary text, and structural UI elements.

For print, Blue Smoke translates to a CMYK breakdown of 18C 0M 1Y 45K. With a moderate key (45%), this color uses black to deepen the chromatic channels rather than replace them, a profile that typically holds up well in both offset and digital print. 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 Blue Smoke

CSS Variable 

:root {
  --brand-primary: #738C8A;
  --brand-primary-rgb: 115, 140, 138;
}

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

Tailwind Config 

colors: {
  brand: '#738C8A',
}

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

Print Design (CMYK) 

C: 18%
M: 0%
Y: 1%
K: 45%

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

RGB for Screens 

rgb(115, 140, 138)
rgba(115, 140, 138, 0.8)

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

Frequently asked questions

What color is #738C8A?
#738C8A is Blue Smoke, a cool medium color with RGB values of 115, 140, 138. It has a hue of 175°, 10% saturation, and 50% lightness in the HSL color space.
What is the RGB value of #738C8A?
The RGB color code for #738C8A is rgb(115, 140, 138). This means it contains 115 red, 140 green, and 138 blue in the RGB color model.
Is Blue Smoke a warm or cool color?
Blue Smoke (#738C8A) is a cool color with a hue between 120-300° on the color wheel.
How do I use #738C8A in CSS?
You can use #738C8A in CSS with: background-color: #738C8A; or color: #738C8A; or as an RGB value: rgb(115, 140, 138). For print design, use CMYK: 18%, 0%, 1%, 45%.

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