The hexadecimal color code #378FE1 represents a medium shade in the cyan family. In the RGB color model, this color is composed of 55 red, 143 green, and 225 blue, which translates to approximately 22% red, 56% green, and 88% 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, #378FE1 has a hue of 209 degrees, a saturation level of 74%, and a lightness value of 55%. The hue angle of 209° places this color firmly in the cyan spectrum. In the HSV/HSB color model, this translates to a hue of 209°, saturation of 76%, and brightness/value of 88%.
For print applications using the CMYK color model, #378FE1 would be reproduced using 76% cyan, 36% magenta, 0% yellow, and 12% black. The closest web-safe color is #3399CC, 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 #378FE1 with other colors, consider its complementary color at hue 29° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 3641313, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #378FE1
Tailwind CSS
blue-500
HEX
#378FE1
RGB
rgb(55, 143, 225)
RGB %
22%, 56%, 88%
HSL
hsl(209, 74%, 55%)
HSV
hsv(209, 76%, 88%)
CMYK
76%, 36%, 0%, 12%
Decimal
3641313
Web Safe
#3399CC
🎨 Color Schemes for #378FE1
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #378FE1
🌗 Shades and Tints of #378FE1
Shades (adding black)
Tints (adding white)
🎚️ Tones of #378FE1
Tones (adding gray / desaturating)
🌈 Hue Variations of #378FE1
Hue Variations (shifting the color spectrum)
👁️ Preview of #378FE1 in Use
Text on #378FE1
This demonstrates text readability on the color background. (Click to edit)
#378FE1 as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #378FE1
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.
Cool Azure is a medium, vibrant, cool cyan color with a hue angle of 209°, saturation of 74%, and lightness of 55%. Its RGB value is (55, 143, 225) and its CMYK breakdown is C:76% M:36% Y:0% K:12%.
This is a Summer (Cool) color palette archetype. Calm, Clarity, Communication, Tech. Cyan/Teal promotes clear thinking and emotional balance.
Frequently Asked Questions About #378FE1
What is the HEX code for Cool Azure? +
The HEX code for Cool Azure is #378FE1. In CSS you can use it directly as color: #378FE1; or as a background: background-color: #378FE1;. 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 #378FE1? +
The RGB value of #378FE1 is rgb(55, 143, 225). This means the color contains 55 out of 255 parts red, 143 out of 255 parts green, and 225 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(55, 143, 225);
What is the HSL value of #378FE1? +
The HSL value of #378FE1 is hsl(209, 74%, 55%). The hue is 209°, placing it in the cyan family on the color wheel. The saturation is 74%, making it vibrant. The lightness is 55%, 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 #378FE1 a warm or cool color? +
#378FE1 is classified as a cool color based on its hue angle of 209°. 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 #378FE1? +
The approximate CMYK value of #378FE1 is C:76% M:36% Y:0% K:12%. 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.
