✓ Copied to clipboard
#343FDA (Cool Blue) color swatch preview — Color From Pic.
#343FDA — Cool Blue color swatch

Cool Blue

#343FDA

📝 Color Information for #343FDA

The hexadecimal color code #343FDA represents a medium shade in the blue family. In the RGB color model, this color is composed of 52 red, 63 green, and 218 blue, which translates to approximately 20% red, 25% green, and 85% 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, #343FDA has a hue of 236 degrees, a saturation level of 69%, and a lightness value of 53%. The hue angle of 236° places this color firmly in the blue spectrum. In the HSV/HSB color model, this translates to a hue of 236°, saturation of 76%, and brightness/value of 85%. For print applications using the CMYK color model, #343FDA would be reproduced using 76% cyan, 71% magenta, 0% yellow, and 15% black. The closest web-safe color is #3333CC, 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 #343FDA with other colors, consider its complementary color at hue 56° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 3424218, which can be useful in certain programming contexts.

🔢 Color Conversion Codes for #343FDA

Tailwind CSS
indigo-700
HEX
#343FDA
RGB
rgb(52, 63, 218)
RGB %
20%, 25%, 85%
HSL
hsl(236, 69%, 53%)
HSV
hsv(236, 76%, 85%)
CMYK
76%, 71%, 0%, 15%
Decimal
3424218
Web Safe
#3333CC

🎨 Color Schemes for #343FDA

Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)

🔄 Alternatives to #343FDA

🌗 Shades and Tints of #343FDA

Shades (adding black)
Tints (adding white)

🎚️ Tones of #343FDA

Tones (adding gray / desaturating)

🌈 Hue Variations of #343FDA

Hue Variations (shifting the color spectrum)

👁️ Preview of #343FDA in Use

Text on #343FDA
This demonstrates text readability on the color background. (Click to edit)
#343FDA as Text
This shows the color used as text on white. (Click to edit)

👓 Color Blindness Simulation for #343FDA

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 #343FDA

:root { --color-hex: #343FDA; --color-rgb: 52, 63, 218; --color-hsl: 236, 69%, 53%; } .bg-color { background-color: #343FDA; } .text-color { color: #343FDA; } .border-color { border-color: #343FDA; }

🛠️ Use #343FDA in Your Project

🎨
Build a Palette with #343FDA
Generate harmonious color schemes
⚖️
Check Contrast for #343FDA
WCAG accessibility testing
🌈
Create a Gradient with #343FDA
Beautiful CSS gradients

🔗 Related Colors to #343FDA

#3492DA
Hue -30°
#3469DA
Hue -15°
#5334DA
Hue +15°
#7C34DA
Hue +30°
#242EC2
85% L
#1D269F
70% L
#151C74
50% L
#0D1045
30% L
#5B64E1
62% L
#868DE9
72% L
#ADB2F0
81% L
#D8DAF8
91% L

About Cool Blue (#343FDA)

Cool Blue is a medium, vibrant, cool blue color with a hue angle of 236°, saturation of 69%, and lightness of 53%. Its RGB value is (52, 63, 218) and its CMYK breakdown is C:76% M:71% Y:0% K:15%.

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 #343FDA

What is the HEX code for Cool Blue? +

The HEX code for Cool Blue is #343FDA. In CSS you can use it directly as color: #343FDA; or as a background: background-color: #343FDA;. 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 #343FDA? +

The RGB value of #343FDA is rgb(52, 63, 218). This means the color contains 52 out of 255 parts red, 63 out of 255 parts green, and 218 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(52, 63, 218);

What is the HSL value of #343FDA? +

The HSL value of #343FDA is hsl(236, 69%, 53%). The hue is 236°, placing it in the blue family on the color wheel. The saturation is 69%, making it vibrant. The lightness is 53%, 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 #343FDA a warm or cool color? +

#343FDA is classified as a cool color based on its hue angle of 236°. 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 #343FDA? +

The approximate CMYK value of #343FDA is C:76% M:71% Y:0% K:15%. 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 #343FDA with Other Tools

🔢
Color Converter
Get all formats for #343FDA — HEX, RGB, HSL, HSV, CMYK, harmonies and shades.
Contrast Checker
Test whether #343FDA passes WCAG AA/AAA contrast requirements as text.
🎨
Palette Generator
Generate complementary, triadic, and analogous palettes starting from #343FDA.
👓
Blindness Simulator
See how #343FDA appears to users with deuteranopia, protanopia, and tritanopia.
📊
Color Analysis
Deep analysis of luminance, temperature, psychology and harmonies for #343FDA.
🎭
Creative Aspects
Explore the mood, psychology, seasonal meaning, and mixing guide for #343FDA.
🌅
Gradient Maker
Create a beautiful CSS linear or radial gradient starting from #343FDA.
🔬
Technical Formats
See #343FDA in OKLCH, Lab, HSV, XYZ, and other advanced color spaces.
🎨
Practical Formats
Get #343FDA 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.