The hexadecimal color code #15171E represents a very dark shade in the blue family. In the RGB color model, this color is composed of 21 red, 23 green, and 30 blue, which translates to approximately 8% red, 9% green, and 12% blue. This makes it a nearly neutral color with cool undertones that can evoke different emotional responses depending on its application.
When analyzed in the HSL (Hue, Saturation, Lightness) color space, #15171E has a hue of 227 degrees, a saturation level of 18%, and a lightness value of 10%. The hue angle of 227° places this color firmly in the blue spectrum. In the HSV/HSB color model, this translates to a hue of 227°, saturation of 30%, and brightness/value of 12%.
For print applications using the CMYK color model, #15171E would be reproduced using 30% cyan, 23% magenta, 0% yellow, and 88% black. The closest web-safe color is #000033, 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 moderate to low saturation gives this color a sophisticated, muted quality that works well in professional and minimalist designs. When pairing #15171E with other colors, consider its complementary color at hue 47° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 1382174, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #15171E
Tailwind CSS
zinc-900
HEX
#15171E
RGB
rgb(21, 23, 30)
RGB %
8%, 9%, 12%
HSL
hsl(227, 18%, 10%)
HSV
hsv(227, 30%, 12%)
CMYK
30%, 23%, 0%, 88%
Decimal
1382174
Web Safe
#000033
🎨 Color Schemes for #15171E
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #15171E
🌗 Shades and Tints of #15171E
Shades (adding black)
Tints (adding white)
🎚️ Tones of #15171E
Tones (adding gray / desaturating)
🌈 Hue Variations of #15171E
Hue Variations (shifting the color spectrum)
👁️ Preview of #15171E in Use
Text on #15171E
This demonstrates text readability on the color background. (Click to edit)
#15171E as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #15171E
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 Muted Blue is a dark, muted, cool blue color with a hue angle of 227°, saturation of 18%, and lightness of 10%. Its RGB value is (21, 23, 30) and its CMYK breakdown is C:30% M:23% Y:0% K:88%.
This is a Winter (Muted) color palette archetype. Trust, Loyalty, Wisdom, Confidence. Blue is considered beneficial to the mind and body.
Frequently Asked Questions About #15171E
What is the HEX code for Deep Muted Blue? +
The HEX code for Deep Muted Blue is #15171E. In CSS you can use it directly as color: #15171E; or as a background: background-color: #15171E;. 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 #15171E? +
The RGB value of #15171E is rgb(21, 23, 30). This means the color contains 21 out of 255 parts red, 23 out of 255 parts green, and 30 out of 255 parts blue. Red is the moderate channel in this color mix. You can use the full RGB function in any CSS property: color: rgb(21, 23, 30);
What is the HSL value of #15171E? +
The HSL value of #15171E is hsl(227, 18%, 10%). The hue is 227°, placing it in the blue family on the color wheel. The saturation is 18%, making it muted. The lightness is 10%, 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 #15171E a warm or cool color? +
#15171E is classified as a cool color based on its hue angle of 227°. 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 #15171E? +
The approximate CMYK value of #15171E is C:30% M:23% Y:0% K:88%. 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.
