The hexadecimal color code #187B39 represents a dark shade in the green family. In the RGB color model, this color is composed of 24 red, 123 green, and 57 blue, which translates to approximately 9% red, 48% green, and 22% 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, #187B39 has a hue of 140 degrees, a saturation level of 67%, and a lightness value of 29%. The hue angle of 140° places this color firmly in the green spectrum. In the HSV/HSB color model, this translates to a hue of 140°, saturation of 80%, and brightness/value of 48%.
For print applications using the CMYK color model, #187B39 would be reproduced using 80% cyan, 0% magenta, 54% yellow, and 52% black. The closest web-safe color is #006633, which may be useful for ensuring compatibility across older displays and systems.
This color works well in various design contexts. As a darker shade, it works well for text, headers, and creating visual weight in compositions. The high saturation makes this color vibrant and attention-grabbing, ideal for call-to-action buttons, highlights, and accent elements. When pairing #187B39 with other colors, consider its complementary color at hue 320° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 1604409, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #187B39
Tailwind CSS
green-700
HEX
#187B39
RGB
rgb(24, 123, 57)
RGB %
9%, 48%, 22%
HSL
hsl(140, 67%, 29%)
HSV
hsv(140, 80%, 48%)
CMYK
80%, 0%, 54%, 52%
Decimal
1604409
Web Safe
#006633
🎨 Color Schemes for #187B39
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #187B39
🌗 Shades and Tints of #187B39
Shades (adding black)
Tints (adding white)
🎚️ Tones of #187B39
Tones (adding gray / desaturating)
🌈 Hue Variations of #187B39
Hue Variations (shifting the color spectrum)
👁️ Preview of #187B39 in Use
Text on #187B39
This demonstrates text readability on the color background. (Click to edit)
#187B39 as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #187B39
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 Emerald is a dark, vibrant, cool green color with a hue angle of 140°, saturation of 67%, and lightness of 29%. Its RGB value is (24, 123, 57) and its CMYK breakdown is C:80% M:0% Y:54% K:52%.
This is a Winter (Deep) color palette archetype. Nature, Growth, Harmony, Health. Green suggests stability and endurance, bridging the warm and cool colors.
Frequently Asked Questions About #187B39
What is the HEX code for Dark Cool Emerald? +
The HEX code for Dark Cool Emerald is #187B39. In CSS you can use it directly as color: #187B39; or as a background: background-color: #187B39;. 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 #187B39? +
The RGB value of #187B39 is rgb(24, 123, 57). This means the color contains 24 out of 255 parts red, 123 out of 255 parts green, and 57 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(24, 123, 57);
What is the HSL value of #187B39? +
The HSL value of #187B39 is hsl(140, 67%, 29%). The hue is 140°, placing it in the green family on the color wheel. The saturation is 67%, making it vibrant. The lightness is 29%, making it dark. HSL is the most useful format for programmatic color manipulation in CSS, as you can easily adjust lightness to create tints and shades.
Is #187B39 a warm or cool color? +
#187B39 is classified as a cool color based on its hue angle of 140°. 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 #187B39? +
The approximate CMYK value of #187B39 is C:80% M:0% Y:54% K:52%. 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.
