Spring Green is a
cool light color with the hex code #66FF80.
This vibrant hue can be represented as RGB
102, 255, 128 in digital design or CMYK 60%, 0%, 50%, 0% for print applications.
Find matching Pantone color.
Spring Green
#66FF80
Spring Green color values
- HEX
- #66FF80
- RGB
- 102, 255, 128
- HSL
- 130°, 100%, 70%
- CMYK
- 60, 0, 50, 0
Shades & tints
Darker Lighter
About this color
Spring Green sits at 130° on the color wheel with 100% saturation and 70% lightness, placing it in the green segment of the spectrum. With saturation at 100%, this is a high-chroma color: the kind that anchors palettes and demands considered placement. At medium-high lightness, it holds its own on white backgrounds while remaining approachable.
In digital environments, Spring Green is rendered as rgb(102, 255, 128), where the green channel leads at 255, producing a distinctly green-dominant tone. High saturation at this lightness produces strong contrast against white — effective for CTAs, badges, and elements that need to stop the eye.
For print, Spring Green translates to a CMYK breakdown of 60C 0M 50Y 0K. With almost no black ink (0%), this color is built almost entirely from process inks: 60% cyan, 50% yellow. This profile tends toward vibrancy in print, though ink density limits on press may affect saturation on coated versus uncoated stock. 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 Spring Green
CSS Variable
:root {
--brand-primary: #66FF80;
--brand-primary-rgb: 102, 255, 128;
}Define as a CSS custom property for consistent theming across your site.
Tailwind Config
colors: {
brand: '#66FF80',
}
Add to your Tailwind config to use classes like bg-brand.
Print Design (CMYK)
C: 60%
M: 0%
Y: 50%
K: 0%Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.
RGB for Screens
rgb(102, 255, 128)
rgba(102, 255, 128, 0.8)Use RGB notation for compatibility or add alpha channel for transparency.
Frequently asked questions
What color is #66FF80?
#66FF80 is Spring Green, a cool light color with RGB values of 102, 255, 128. It has a hue of 130°, 100%
saturation, and 70% lightness in the HSL color
space.
What is the RGB value of #66FF80?
The RGB color code for #66FF80 is rgb(102, 255, 128). This means it contains 102 red,
255 green, and 128 blue in the RGB color model.
Is Spring Green a warm or cool color?
Spring Green (#66FF80) is a cool color with a hue between 120-300° on the color wheel.
How do I use #66FF80 in CSS?
You can use #66FF80 in CSS with:
background-color: #66FF80; or color: #66FF80; or as an RGB value: rgb(102, 255, 128). For print design, use CMYK: 60%, 0%, 50%, 0%.