✓ Copied to clipboard
#1D2E91 (Dark Cool Blue) color swatch preview — Color From Pic.
#1D2E91 — Dark Cool Blue color swatch

Dark Cool Blue

#1D2E91

📝 Color Information for #1D2E91

The hexadecimal color code #1D2E91 represents a dark shade in the blue family. In the RGB color model, this color is composed of 29 red, 46 green, and 145 blue, which translates to approximately 11% red, 18% green, and 57% 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, #1D2E91 has a hue of 231 degrees, a saturation level of 67%, and a lightness value of 34%. The hue angle of 231° places this color firmly in the blue spectrum. In the HSV/HSB color model, this translates to a hue of 231°, saturation of 80%, and brightness/value of 57%. For print applications using the CMYK color model, #1D2E91 would be reproduced using 80% cyan, 68% magenta, 0% yellow, and 43% black. The closest web-safe color is #333399, 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 #1D2E91 with other colors, consider its complementary color at hue 51° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 1912465, which can be useful in certain programming contexts.

🔢 Color Conversion Codes for #1D2E91

Tailwind CSS
blue-900
HEX
#1D2E91
RGB
rgb(29, 46, 145)
RGB %
11%, 18%, 57%
HSL
hsl(231, 67%, 34%)
HSV
hsv(231, 80%, 57%)
CMYK
80%, 68%, 0%, 43%
Decimal
1912465
Web Safe
#333399

🎨 Color Schemes for #1D2E91

Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)

🔄 Alternatives to #1D2E91

🌗 Shades and Tints of #1D2E91

Shades (adding black)
Tints (adding white)

🎚️ Tones of #1D2E91

Tones (adding gray / desaturating)

🌈 Hue Variations of #1D2E91

Hue Variations (shifting the color spectrum)

👁️ Preview of #1D2E91 in Use

Text on #1D2E91
This demonstrates text readability on the color background. (Click to edit)
#1D2E91 as Text
This shows the color used as text on white. (Click to edit)

👓 Color Blindness Simulation for #1D2E91

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.

📋 CSS Code for #1D2E91

:root { --color-hex: #1D2E91; --color-rgb: 29, 46, 145; --color-hsl: 231, 67%, 34%; } .bg-color { background-color: #1D2E91; } .text-color { color: #1D2E91; } .border-color { border-color: #1D2E91; }

🛠️ Use #1D2E91 in Your Project

🎨
Build a Palette with #1D2E91
Generate harmonious color schemes
⚖️
Check Contrast for #1D2E91
WCAG accessibility testing
🌈
Create a Gradient with #1D2E91
Beautiful CSS gradients

🔗 Related Colors to #1D2E91

#1D6891
Hue -30°
#1D4B91
Hue -15°
#281D91
Hue +15°
#451D91
Hue +30°
#18277B
85% L
#142066
70% L
#0E1748
50% L
#080E2B
30% L
#2840C8
47% L
#5569DD
60% L
#909EE9
74% L
#C8CEF4
87% L

About Dark Cool Blue (#1D2E91)

Dark Cool Blue is a medium, vibrant, cool blue color with a hue angle of 231°, saturation of 67%, and lightness of 34%. Its RGB value is (29, 46, 145) and its CMYK breakdown is C:80% M:68% Y:0% K:43%.

This is a Summer (Cool) color palette archetype. Trust, Loyalty, Wisdom, Confidence. Blue is considered beneficial to the mind and body.

Frequently Asked Questions About #1D2E91

What is the HEX code for Dark Cool Blue? +

The HEX code for Dark Cool Blue is #1D2E91. In CSS you can use it directly as color: #1D2E91; or as a background: background-color: #1D2E91;. 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 #1D2E91? +

The RGB value of #1D2E91 is rgb(29, 46, 145). This means the color contains 29 out of 255 parts red, 46 out of 255 parts green, and 145 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(29, 46, 145);

What is the HSL value of #1D2E91? +

The HSL value of #1D2E91 is hsl(231, 67%, 34%). The hue is 231°, placing it in the blue family on the color wheel. The saturation is 67%, making it vibrant. The lightness is 34%, 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 #1D2E91 a warm or cool color? +

#1D2E91 is classified as a cool color based on its hue angle of 231°. 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 #1D2E91? +

The approximate CMYK value of #1D2E91 is C:80% M:68% Y:0% K:43%. 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.

Analyze #1D2E91 with Other Tools

🔢
Color Converter
Get all formats for #1D2E91 — HEX, RGB, HSL, HSV, CMYK, harmonies and shades.
Contrast Checker
Test whether #1D2E91 passes WCAG AA/AAA contrast requirements as text.
🎨
Palette Generator
Generate complementary, triadic, and analogous palettes starting from #1D2E91.
👓
Blindness Simulator
See how #1D2E91 appears to users with deuteranopia, protanopia, and tritanopia.
📊
Color Analysis
Deep analysis of luminance, temperature, psychology and harmonies for #1D2E91.
🎭
Creative Aspects
Explore the mood, psychology, seasonal meaning, and mixing guide for #1D2E91.
🌅
Gradient Maker
Create a beautiful CSS linear or radial gradient starting from #1D2E91.
🔬
Technical Formats
See #1D2E91 in OKLCH, Lab, HSV, XYZ, and other advanced color spaces.
🎨
Practical Formats
Get #1D2E91 as a CSS variable, Tailwind class, design token, and more.

More Color Tools

Explore our full suite of free color utilities for designers and developers.