The hexadecimal color code #B31B00 represents a dark shade in the red family. In the RGB color model, this color is composed of 179 red, 27 green, and 0 blue, which translates to approximately 70% red, 11% green, and 0% blue. This makes it a highly saturated color with warm undertones that can evoke different emotional responses depending on its application.
When analyzed in the HSL (Hue, Saturation, Lightness) color space, #B31B00 has a hue of 9 degrees, a saturation level of 100%, and a lightness value of 35%. The hue angle of 9° places this color firmly in the red spectrum. In the HSV/HSB color model, this translates to a hue of 9°, saturation of 100%, and brightness/value of 70%.
For print applications using the CMYK color model, #B31B00 would be reproduced using 0% cyan, 85% magenta, 100% yellow, and 30% black. The closest web-safe color is #CC3300, 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 #B31B00 with other colors, consider its complementary color at hue 189° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 11737856, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #B31B00
Tailwind CSS
red-700
HEX
#B31B00
RGB
rgb(179, 27, 0)
RGB %
70%, 11%, 0%
HSL
hsl(9, 100%, 35%)
HSV
hsv(9, 100%, 70%)
CMYK
0%, 85%, 100%, 30%
Decimal
11737856
Web Safe
#CC3300
🎨 Color Schemes for #B31B00
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #B31B00
🌗 Shades and Tints of #B31B00
Shades (adding black)
Tints (adding white)
🎚️ Tones of #B31B00
Tones (adding gray / desaturating)
🌈 Hue Variations of #B31B00
Hue Variations (shifting the color spectrum)
👁️ Preview of #B31B00 in Use
Text on #B31B00
This demonstrates text readability on the color background. (Click to edit)
#B31B00 as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #B31B00
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 Vivid Red is a medium, vibrant, warm red color with a hue angle of 9°, saturation of 100%, and lightness of 35%. Its RGB value is (179, 27, 0) and its CMYK breakdown is C:0% M:85% Y:100% K:30%.
This is a Summer (Cool) color palette archetype. Passion, Energy, Action, Danger. Red is a powerful color that evokes strong emotions and captures attention immediately.
Frequently Asked Questions About #B31B00
What is the HEX code for Dark Vivid Red? +
The HEX code for Dark Vivid Red is #B31B00. In CSS you can use it directly as color: #B31B00; or as a background: background-color: #B31B00;. 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 #B31B00? +
The RGB value of #B31B00 is rgb(179, 27, 0). This means the color contains 179 out of 255 parts red, 27 out of 255 parts green, and 0 out of 255 parts blue. Red is the strongest channel in this color mix. You can use the full RGB function in any CSS property: color: rgb(179, 27, 0);
What is the HSL value of #B31B00? +
The HSL value of #B31B00 is hsl(9, 100%, 35%). The hue is 9°, placing it in the red family on the color wheel. The saturation is 100%, 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 #B31B00 a warm or cool color? +
#B31B00 is classified as a warm color based on its hue angle of 9°. 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 #B31B00? +
The approximate CMYK value of #B31B00 is C:0% M:85% Y:100% K:30%. 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.
