Fountain Blue is a
cool light color with the hex code #66BDCC.
This moderately saturated hue can be represented as RGB
102, 189, 204 in digital design or CMYK 50%, 7%, 0%, 20% for print applications.
Find matching Pantone color.
Fountain Blue
#66BDCC
Fountain Blue color values
- HEX
- #66BDCC
- RGB
- 102, 189, 204
- HSL
- 189°, 50%, 60%
- CMYK
- 50, 7, 0, 20
Shades & tints
Darker Lighter
About this color
Fountain Blue sits at 189° on the color wheel with 50% saturation and 60% lightness, placing it in the cyan segment of the spectrum. The moderate 50% saturation gives it enough color presence to register clearly without competing for dominance in a composition. At medium-high lightness, it holds its own on white backgrounds while remaining approachable.
In digital environments, Fountain Blue is rendered as rgb(102, 189, 204), where the blue channel is highest at 204, though it sits close to the other channels. This cool mid-tone is a reliable choice for UI chrome, informational states, and contexts that call for a calm, readable presence.
For print, Fountain Blue translates to a CMYK breakdown of 50C 7M 0Y 20K. The low-to-moderate black value (20%) means the color's character in print comes primarily from its cyan ink content (50%), 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
Analogous
Triadic
Split-Complementary
How to use Fountain Blue
CSS Variable
:root {
--brand-primary: #66BDCC;
--brand-primary-rgb: 102, 189, 204;
}Define as a CSS custom property for consistent theming across your site.
Tailwind Config
colors: {
brand: '#66BDCC',
}
Add to your Tailwind config to use classes like bg-brand.
Print Design (CMYK)
C: 50%
M: 7%
Y: 0%
K: 20%Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.
RGB for Screens
rgb(102, 189, 204)
rgba(102, 189, 204, 0.8)Use RGB notation for compatibility or add alpha channel for transparency.
Frequently asked questions
What color is #66BDCC?
#66BDCC is Fountain Blue, a cool light color with RGB values of 102, 189, 204. It has a hue of 189°, 50%
saturation, and 60% lightness in the HSL color
space.
What is the RGB value of #66BDCC?
The RGB color code for #66BDCC is rgb(102, 189, 204). This means it contains 102 red,
189 green, and 204 blue in the RGB color model.
Is Fountain Blue a warm or cool color?
Fountain Blue (#66BDCC) is a cool color with a hue between 120-300° on the color wheel.
How do I use #66BDCC in CSS?
You can use #66BDCC in CSS with:
background-color: #66BDCC; or color: #66BDCC; or as an RGB value: rgb(102, 189, 204). For print design, use CMYK: 50%, 7%, 0%, 20%.