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Curious Blue

#259EDA

Curious Blue is a cool medium color with the hex code #259EDA. This vibrant hue can be represented as RGB 37, 158, 218 in digital design or CMYK 83%, 28%, 0%, 15% for print applications. Find matching Pantone color.

Curious Blue color values

HEX
#259EDA
RGB
37, 158, 218
HSL
200°, 71%, 50%
CMYK
83, 28, 0, 15

Shades & tints

Darker Lighter

About this color

Curious Blue sits at 200° on the color wheel with 71% saturation and 50% lightness, placing it in the blue segment of the spectrum. At 71% 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, Curious Blue is rendered as rgb(37, 158, 218), where the blue channel is highest at 218, anchoring the color in the cool register. 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, Curious Blue translates to a CMYK breakdown of 83C 28M 0Y 15K. The low-to-moderate black value (15%) means the color's character in print comes primarily from its cyan ink content (83%), 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

Split-Complementary

How to use Curious Blue

CSS Variable 

:root {
  --brand-primary: #259EDA;
  --brand-primary-rgb: 37, 158, 218;
}

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

Tailwind Config 

colors: {
  brand: '#259EDA',
}

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

Print Design (CMYK) 

C: 83%
M: 28%
Y: 0%
K: 15%

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

RGB for Screens 

rgb(37, 158, 218)
rgba(37, 158, 218, 0.8)

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

Brands using similar hue

24 brand s with colors near 200° on the color wheel

Telegram logo
Telegram
Elastic logo
Elastic
Microsoft logo
Microsoft
Oatly logo
Oatly

Frequently asked questions

What color is #259EDA?
#259EDA is Curious Blue, a cool medium color with RGB values of 37, 158, 218. It has a hue of 200°, 71% saturation, and 50% lightness in the HSL color space.
What is the RGB value of #259EDA?
The RGB color code for #259EDA is rgb(37, 158, 218). This means it contains 37 red, 158 green, and 218 blue in the RGB color model.
Is Curious Blue a warm or cool color?
Curious Blue (#259EDA) is a cool color with a hue between 120-300° on the color wheel.
How do I use #259EDA in CSS?
You can use #259EDA in CSS with: background-color: #259EDA; or color: #259EDA; or as an RGB value: rgb(37, 158, 218). For print design, use CMYK: 83%, 28%, 0%, 15%.

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