The hexadecimal color code #66971C represents a dark shade in the yellow family. In the RGB color model, this color is composed of 102 red, 151 green, and 28 blue, which translates to approximately 40% red, 59% green, and 11% blue. This makes it a moderately saturated color with cool undertones that can evoke different emotional responses depending on its application.
When analyzed in the HSL (Hue, Saturation, Lightness) color space, #66971C has a hue of 84 degrees, a saturation level of 69%, and a lightness value of 35%. The hue angle of 84° places this color firmly in the yellow spectrum. In the HSV/HSB color model, this translates to a hue of 84°, saturation of 81%, and brightness/value of 59%.
For print applications using the CMYK color model, #66971C would be reproduced using 32% cyan, 0% magenta, 81% yellow, and 41% black. The closest web-safe color is #669933, which may be useful for ensuring compatibility across older displays and systems.
This color works well in various design contexts. With its medium lightness, it's versatile enough for both foreground elements and subtle backgrounds. The high saturation makes this color vibrant and attention-grabbing, ideal for call-to-action buttons, highlights, and accent elements. When pairing #66971C with other colors, consider its complementary color at hue 264° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 6723356, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #66971C
Tailwind CSS
lime-600
HEX
#66971C
RGB
rgb(102, 151, 28)
RGB %
40%, 59%, 11%
HSL
hsl(84, 69%, 35%)
HSV
hsv(84, 81%, 59%)
CMYK
32%, 0%, 81%, 41%
Decimal
6723356
Web Safe
#669933
🎨 Color Schemes for #66971C
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #66971C
🌗 Shades and Tints of #66971C
Shades (adding black)
Tints (adding white)
🎚️ Tones of #66971C
Tones (adding gray / desaturating)
🌈 Hue Variations of #66971C
Hue Variations (shifting the color spectrum)
👁️ Preview of #66971C in Use
Text on #66971C
This demonstrates text readability on the color background. (Click to edit)
#66971C as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #66971C
Check how a color is perceived by people with different types of color blindness to create more accessible designs. Understanding color perception helps ensure your content is accessible to everyone.
Dark Cool Chartreuse is a medium, vibrant, warm yellow color with a hue angle of 84°, saturation of 69%, and lightness of 35%. Its RGB value is (102, 151, 28) and its CMYK breakdown is C:32% M:0% Y:81% K:41%.
This is a Spring (Vital) color palette archetype. Happiness, Positivity, Optimism, Caution. Yellow is the most luminous of all the colors of the spectrum.
Frequently Asked Questions About #66971C
What is the HEX code for Dark Cool Chartreuse? +
The HEX code for Dark Cool Chartreuse is #66971C. In CSS you can use it directly as color: #66971C; or as a background: background-color: #66971C;. The three-character shorthand is not available for this color since it cannot be reduced without changing the value. Use the full six-character hex for accurate reproduction in any web or design project.
What is the RGB value of #66971C? +
The RGB value of #66971C is rgb(102, 151, 28). This means the color contains 102 out of 255 parts red, 151 out of 255 parts green, and 28 out of 255 parts blue. Red is the weakest (with blue dominant) channel in this color mix. You can use the full RGB function in any CSS property: color: rgb(102, 151, 28);
What is the HSL value of #66971C? +
The HSL value of #66971C is hsl(84, 69%, 35%). The hue is 84°, placing it in the yellow family on the color wheel. The saturation is 69%, making it vibrant. The lightness is 35%, making it medium. HSL is the most useful format for programmatic color manipulation in CSS, as you can easily adjust lightness to create tints and shades.
Is #66971C a warm or cool color? +
#66971C is classified as a warm color based on its hue angle of 84°. Warm colors — reds, oranges, and yellows — evoke energy, enthusiasm, and urgency. They tend to advance visually and draw the eye. In design, warm colors are often used for calls-to-action, food and hospitality brands, and anywhere a feeling of warmth or excitement is desired.
What is the CMYK value of #66971C? +
The approximate CMYK value of #66971C is C:32% M:0% Y:81% K:41%. CMYK (Cyan, Magenta, Yellow, Key/Black) is the color model used in physical printing. Unlike RGB which mixes light additively on screens, CMYK mixes inks subtractively on paper. Note that the RGB-to-CMYK conversion is an approximation — screen colors and print colors exist in different color gamuts, and some screen colors cannot be exactly reproduced in print. For precise print work, consult a professional print color profile or Pantone matching system.
