The hexadecimal color code #155B56 represents a dark shade in the cyan family. In the RGB color model, this color is composed of 21 red, 91 green, and 86 blue, which translates to approximately 8% red, 36% green, and 34% 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, #155B56 has a hue of 176 degrees, a saturation level of 63%, and a lightness value of 22%. The hue angle of 176° places this color firmly in the cyan spectrum. In the HSV/HSB color model, this translates to a hue of 176°, saturation of 77%, and brightness/value of 36%.
For print applications using the CMYK color model, #155B56 would be reproduced using 77% cyan, 0% magenta, 5% yellow, and 64% black. The closest web-safe color is #006666, 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 #155B56 with other colors, consider its complementary color at hue 356° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 1399638, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #155B56
Tailwind CSS
teal-800
HEX
#155B56
RGB
rgb(21, 91, 86)
RGB %
8%, 36%, 34%
HSL
hsl(176, 63%, 22%)
HSV
hsv(176, 77%, 36%)
CMYK
77%, 0%, 5%, 64%
Decimal
1399638
Web Safe
#006666
🎨 Color Schemes for #155B56
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #155B56
🌗 Shades and Tints of #155B56
Shades (adding black)
Tints (adding white)
🎚️ Tones of #155B56
Tones (adding gray / desaturating)
🌈 Hue Variations of #155B56
Hue Variations (shifting the color spectrum)
👁️ Preview of #155B56 in Use
Text on #155B56
This demonstrates text readability on the color background. (Click to edit)
#155B56 as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #155B56
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.
Deep Cool Cyan is a dark, vibrant, cool cyan color with a hue angle of 176°, saturation of 63%, and lightness of 22%. Its RGB value is (21, 91, 86) and its CMYK breakdown is C:77% M:0% Y:5% K:64%.
This is a Winter (Deep) color palette archetype. Calm, Clarity, Communication, Tech. Cyan/Teal promotes clear thinking and emotional balance.
Frequently Asked Questions About #155B56
What is the HEX code for Deep Cool Cyan? +
The HEX code for Deep Cool Cyan is #155B56. In CSS you can use it directly as color: #155B56; or as a background: background-color: #155B56;. 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 #155B56? +
The RGB value of #155B56 is rgb(21, 91, 86). This means the color contains 21 out of 255 parts red, 91 out of 255 parts green, and 86 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(21, 91, 86);
What is the HSL value of #155B56? +
The HSL value of #155B56 is hsl(176, 63%, 22%). The hue is 176°, placing it in the cyan family on the color wheel. The saturation is 63%, making it vibrant. The lightness is 22%, 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 #155B56 a warm or cool color? +
#155B56 is classified as a cool color based on its hue angle of 176°. 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 #155B56? +
The approximate CMYK value of #155B56 is C:77% M:0% Y:5% K:64%. 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.
