The hexadecimal color code #66A333 represents a medium shade in the green family. In the RGB color model, this color is composed of 102 red, 163 green, and 51 blue, which translates to approximately 40% red, 64% green, and 20% 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, #66A333 has a hue of 93 degrees, a saturation level of 52%, and a lightness value of 42%. The hue angle of 93° places this color firmly in the green spectrum. In the HSV/HSB color model, this translates to a hue of 93°, saturation of 69%, and brightness/value of 64%.
For print applications using the CMYK color model, #66A333 would be reproduced using 37% cyan, 0% magenta, 69% yellow, and 36% 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 moderate to low saturation gives this color a sophisticated, muted quality that works well in professional and minimalist designs. When pairing #66A333 with other colors, consider its complementary color at hue 273° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 6726451, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #66A333
Tailwind CSS
lime-600
HEX
#66A333
RGB
rgb(102, 163, 51)
RGB %
40%, 64%, 20%
HSL
hsl(93, 52%, 42%)
HSV
hsv(93, 69%, 64%)
CMYK
37%, 0%, 69%, 36%
Decimal
6726451
Web Safe
#669933
🎨 Color Schemes for #66A333
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #66A333
🌗 Shades and Tints of #66A333
Shades (adding black)
Tints (adding white)
🎚️ Tones of #66A333
Tones (adding gray / desaturating)
🌈 Hue Variations of #66A333
Hue Variations (shifting the color spectrum)
👁️ Preview of #66A333 in Use
Text on #66A333
This demonstrates text readability on the color background. (Click to edit)
#66A333 as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #66A333
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.
Cool Green is a medium, moderately saturated, cool green color with a hue angle of 93°, saturation of 52%, and lightness of 42%. Its RGB value is (102, 163, 51) and its CMYK breakdown is C:37% M:0% Y:69% K:36%.
This is a Spring (Vital) color palette archetype. Nature, Growth, Harmony, Health. Green suggests stability and endurance, bridging the warm and cool colors.
Frequently Asked Questions About #66A333
What is the HEX code for Cool Green? +
The HEX code for Cool Green is #66A333. In CSS you can use it directly as color: #66A333; or as a background: background-color: #66A333;. 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 #66A333? +
The RGB value of #66A333 is rgb(102, 163, 51). This means the color contains 102 out of 255 parts red, 163 out of 255 parts green, and 51 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, 163, 51);
What is the HSL value of #66A333? +
The HSL value of #66A333 is hsl(93, 52%, 42%). The hue is 93°, placing it in the green family on the color wheel. The saturation is 52%, making it moderately saturated. The lightness is 42%, 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 #66A333 a warm or cool color? +
#66A333 is classified as a cool color based on its hue angle of 93°. Cool colors — blues, greens, and purples — evoke calm, trust, and professionalism. They tend to recede visually and create a feeling of space. In design, cool colors are often used for technology, healthcare, and finance brands, as well as anywhere a sense of calm or reliability is needed.
What is the CMYK value of #66A333? +
The approximate CMYK value of #66A333 is C:37% M:0% Y:69% K:36%. 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.
