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Chartreuse

#66E01F

Chartreuse is a neutral medium color with the hex code #66E01F. This vibrant hue can be represented as RGB 102, 224, 31 in digital design or CMYK 54%, 0%, 86%, 12% for print applications. Find matching Pantone color.

Chartreuse color values

HEX
#66E01F
RGB
102, 224, 31
HSL
98°, 76%, 50%
CMYK
54, 0, 86, 12

Shades & tints

Darker Lighter

About this color

Chartreuse sits at 98° on the color wheel with 76% saturation and 50% lightness, placing it in the green segment of the spectrum. At 76% 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, Chartreuse is rendered as rgb(102, 224, 31), where the green channel leads at 224, 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, Chartreuse translates to a CMYK breakdown of 54C 0M 86Y 12K. The low-to-moderate black value (12%) means the color's character in print comes primarily from its yellow 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 Chartreuse

CSS Variable 

:root {
  --brand-primary: #66E01F;
  --brand-primary-rgb: 102, 224, 31;
}

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

Tailwind Config 

colors: {
  brand: '#66E01F',
}

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

Print Design (CMYK) 

C: 54%
M: 0%
Y: 86%
K: 12%

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

RGB for Screens 

rgb(102, 224, 31)
rgba(102, 224, 31, 0.8)

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

Brands using similar hue

8 brand s with colors near 98° on the color wheel

Wise logo
Wise
Pixar logo
Pixar
NVIDIA logo
NVIDIA
Shopify logo
Shopify

Frequently asked questions

What color is #66E01F?
#66E01F is Chartreuse, a neutral medium color with RGB values of 102, 224, 31. It has a hue of 98°, 76% saturation, and 50% lightness in the HSL color space.
What is the RGB value of #66E01F?
The RGB color code for #66E01F is rgb(102, 224, 31). This means it contains 102 red, 224 green, and 31 blue in the RGB color model.
Is Chartreuse a warm or cool color?
Chartreuse (#66E01F) is a neutral color, sitting between warm and cool on the color wheel.
How do I use #66E01F in CSS?
You can use #66E01F in CSS with: background-color: #66E01F; or color: #66E01F; or as an RGB value: rgb(102, 224, 31). For print design, use CMYK: 54%, 0%, 86%, 12%.

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