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Spring Green

#21E47F

Spring Green is a cool medium color with the hex code #21E47F. This vibrant hue can be represented as RGB 33, 228, 127 in digital design or CMYK 86%, 0%, 44%, 11% for print applications. Find matching Pantone color.

Spring Green color values

HEX
#21E47F
RGB
33, 228, 127
HSL
149°, 78%, 51%
CMYK
86, 0, 44, 11

Shades & tints

Darker Lighter

About this color

Spring Green sits at 149° on the color wheel with 78% saturation and 51% lightness, placing it in the green segment of the spectrum. At 78% saturation, the hue is fully legible and confident — richly chromatic without tipping into high-contrast territory. At medium-high lightness, it holds its own on white backgrounds while remaining approachable.

In digital environments, Spring Green is rendered as rgb(33, 228, 127), where the green channel leads at 228, producing a distinctly green-dominant tone. 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, Spring Green translates to a CMYK breakdown of 86C 0M 44Y 11K. The low-to-moderate black value (11%) means the color's character in print comes primarily from its cyan ink content (86%), 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 Spring Green

CSS Variable 

:root {
  --brand-primary: #21E47F;
  --brand-primary-rgb: 33, 228, 127;
}

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

Tailwind Config 

colors: {
  brand: '#21E47F',
}

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

Print Design (CMYK) 

C: 86%
M: 0%
Y: 44%
K: 11%

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

RGB for Screens 

rgb(33, 228, 127)
rgba(33, 228, 127, 0.8)

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

Brands using similar hue

13 brand s with colors near 149° on the color wheel

Hulu logo
Hulu
Naver logo
Naver
Chime logo
Chime
MongoDB logo
MongoDB

Frequently asked questions

What color is #21E47F?
#21E47F is Spring Green, a cool medium color with RGB values of 33, 228, 127. It has a hue of 149°, 78% saturation, and 51% lightness in the HSL color space.
What is the RGB value of #21E47F?
The RGB color code for #21E47F is rgb(33, 228, 127). This means it contains 33 red, 228 green, and 127 blue in the RGB color model.
Is Spring Green a warm or cool color?
Spring Green (#21E47F) is a cool color with a hue between 120-300° on the color wheel.
How do I use #21E47F in CSS?
You can use #21E47F in CSS with: background-color: #21E47F; or color: #21E47F; or as an RGB value: rgb(33, 228, 127). For print design, use CMYK: 86%, 0%, 44%, 11%.

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