The hexadecimal color code #397DDD represents a medium shade in the blue family. In the RGB color model, this color is composed of 57 red, 125 green, and 221 blue, which translates to approximately 22% red, 49% green, and 87% 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, #397DDD has a hue of 215 degrees, a saturation level of 71%, and a lightness value of 55%. The hue angle of 215° places this color firmly in the blue spectrum. In the HSV/HSB color model, this translates to a hue of 215°, saturation of 74%, and brightness/value of 87%.
For print applications using the CMYK color model, #397DDD would be reproduced using 74% cyan, 43% magenta, 0% yellow, and 13% black. The closest web-safe color is #3366CC, 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 #397DDD with other colors, consider its complementary color at hue 35° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 3767773, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #397DDD
Tailwind CSS
blue-500
HEX
#397DDD
RGB
rgb(57, 125, 221)
RGB %
22%, 49%, 87%
HSL
hsl(215, 71%, 55%)
HSV
hsv(215, 74%, 87%)
CMYK
74%, 43%, 0%, 13%
Decimal
3767773
Web Safe
#3366CC
🎨 Color Schemes for #397DDD
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #397DDD
🌗 Shades and Tints of #397DDD
Shades (adding black)
Tints (adding white)
🎚️ Tones of #397DDD
Tones (adding gray / desaturating)
🌈 Hue Variations of #397DDD
Hue Variations (shifting the color spectrum)
👁️ Preview of #397DDD in Use
Text on #397DDD
This demonstrates text readability on the color background. (Click to edit)
#397DDD as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #397DDD
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 blue color with a hue angle of 215°, saturation of 71%, and lightness of 55%. Its RGB value is (57, 125, 221) and its CMYK breakdown is C:74% M:43% Y:0% K:13%.
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 #397DDD
What is the HEX code for Cool Azure? +
The HEX code for Cool Azure is #397DDD. In CSS you can use it directly as color: #397DDD; or as a background: background-color: #397DDD;. 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 #397DDD? +
The RGB value of #397DDD is rgb(57, 125, 221). This means the color contains 57 out of 255 parts red, 125 out of 255 parts green, and 221 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(57, 125, 221);
What is the HSL value of #397DDD? +
The HSL value of #397DDD is hsl(215, 71%, 55%). The hue is 215°, placing it in the blue family on the color wheel. The saturation is 71%, 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 #397DDD a warm or cool color? +
#397DDD is classified as a cool color based on its hue angle of 215°. 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 #397DDD? +
The approximate CMYK value of #397DDD is C:74% M:43% Y:0% K:13%. 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.
