Eastern Blue is a
cool medium color with the hex code #1D9EAF.
This vibrant hue can be represented as RGB
29, 158, 175 in digital design or CMYK 83%, 10%, 0%, 31% for print applications.
Find matching Pantone color.
Eastern Blue
#1D9EAF
Eastern Blue color values
- HEX
- #1D9EAF
- RGB
- 29, 158, 175
- HSL
- 187°, 72%, 40%
- CMYK
- 83, 10, 0, 31
Shades & tints
Darker Lighter
About this color
Eastern Blue sits at 187° on the color wheel with 72% saturation and 40% lightness, placing it in the cyan segment of the spectrum. At 72% 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, Eastern Blue is rendered as rgb(29, 158, 175), where the blue channel is highest at 175, though it sits close to the other channels. 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, Eastern Blue translates to a CMYK breakdown of 83C 10M 0Y 31K. With a moderate key (31%), 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
Analogous
Triadic
Split-Complementary
How to use Eastern Blue
CSS Variable
:root {
--brand-primary: #1D9EAF;
--brand-primary-rgb: 29, 158, 175;
}Define as a CSS custom property for consistent theming across your site.
Tailwind Config
colors: {
brand: '#1D9EAF',
}
Add to your Tailwind config to use classes like bg-brand.
Print Design (CMYK)
C: 83%
M: 10%
Y: 0%
K: 31%Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.
RGB for Screens
rgb(29, 158, 175)
rgba(29, 158, 175, 0.8)Use RGB notation for compatibility or add alpha channel for transparency.
Frequently asked questions
What color is #1D9EAF?
#1D9EAF is Eastern Blue, a cool medium color with RGB values of 29, 158, 175. It has a hue of 187°, 72%
saturation, and 40% lightness in the HSL color
space.
What is the RGB value of #1D9EAF?
The RGB color code for #1D9EAF is rgb(29, 158, 175). This means it contains 29 red,
158 green, and 175 blue in the RGB color model.
Is Eastern Blue a warm or cool color?
Eastern Blue (#1D9EAF) is a cool color with a hue between 120-300° on the color wheel.
How do I use #1D9EAF in CSS?
You can use #1D9EAF in CSS with:
background-color: #1D9EAF; or color: #1D9EAF; or as an RGB value: rgb(29, 158, 175). For print design, use CMYK: 83%, 10%, 0%, 31%.