The hexadecimal color code #257EA7 represents a dark shade in the cyan family. In the RGB color model, this color is composed of 37 red, 126 green, and 167 blue, which translates to approximately 15% red, 49% green, and 65% 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, #257EA7 has a hue of 199 degrees, a saturation level of 64%, and a lightness value of 40%. The hue angle of 199° places this color firmly in the cyan spectrum. In the HSV/HSB color model, this translates to a hue of 199°, saturation of 78%, and brightness/value of 65%.
For print applications using the CMYK color model, #257EA7 would be reproduced using 78% cyan, 25% magenta, 0% yellow, and 35% black. The closest web-safe color is #336699, 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 #257EA7 with other colors, consider its complementary color at hue 19° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 2457255, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #257EA7
Tailwind CSS
cyan-700
HEX
#257EA7
RGB
rgb(37, 126, 167)
RGB %
15%, 49%, 65%
HSL
hsl(199, 64%, 40%)
HSV
hsv(199, 78%, 65%)
CMYK
78%, 25%, 0%, 35%
Decimal
2457255
Web Safe
#336699
🎨 Color Schemes for #257EA7
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #257EA7
🌗 Shades and Tints of #257EA7
Shades (adding black)
Tints (adding white)
🎚️ Tones of #257EA7
Tones (adding gray / desaturating)
🌈 Hue Variations of #257EA7
Hue Variations (shifting the color spectrum)
👁️ Preview of #257EA7 in Use
Text on #257EA7
This demonstrates text readability on the color background. (Click to edit)
#257EA7 as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #257EA7
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.
Dark Cool Azure is a medium, vibrant, cool cyan color with a hue angle of 199°, saturation of 64%, and lightness of 40%. Its RGB value is (37, 126, 167) and its CMYK breakdown is C:78% M:25% Y:0% K:35%.
This is a Summer (Cool) color palette archetype. Calm, Clarity, Communication, Tech. Cyan/Teal promotes clear thinking and emotional balance.
Frequently Asked Questions About #257EA7
What is the HEX code for Dark Cool Azure? +
The HEX code for Dark Cool Azure is #257EA7. In CSS you can use it directly as color: #257EA7; or as a background: background-color: #257EA7;. 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 #257EA7? +
The RGB value of #257EA7 is rgb(37, 126, 167). This means the color contains 37 out of 255 parts red, 126 out of 255 parts green, and 167 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(37, 126, 167);
What is the HSL value of #257EA7? +
The HSL value of #257EA7 is hsl(199, 64%, 40%). The hue is 199°, placing it in the cyan family on the color wheel. The saturation is 64%, making it vibrant. The lightness is 40%, 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 #257EA7 a warm or cool color? +
#257EA7 is classified as a cool color based on its hue angle of 199°. 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 #257EA7? +
The approximate CMYK value of #257EA7 is C:78% M:25% Y:0% K:35%. 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.
