The hexadecimal color code #EFEF39 represents a medium shade in the yellow family. In the RGB color model, this color is composed of 239 red, 239 green, and 57 blue, which translates to approximately 94% red, 94% green, and 22% blue. This makes it a highly 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, #EFEF39 has a hue of 60 degrees, a saturation level of 85%, and a lightness value of 58%. The hue angle of 60° places this color firmly in the yellow spectrum. In the HSV/HSB color model, this translates to a hue of 60°, saturation of 76%, and brightness/value of 94%.
For print applications using the CMYK color model, #EFEF39 would be reproduced using 0% cyan, 0% magenta, 76% yellow, and 6% black. The closest web-safe color is #FFFF33, 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 #EFEF39 with other colors, consider its complementary color at hue 240° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 15724345, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #EFEF39
Tailwind CSS
yellow-300
HEX
#EFEF39
RGB
rgb(239, 239, 57)
RGB %
94%, 94%, 22%
HSL
hsl(60, 85%, 58%)
HSV
hsv(60, 76%, 94%)
CMYK
0%, 0%, 76%, 6%
Decimal
15724345
Web Safe
#FFFF33
🎨 Color Schemes for #EFEF39
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #EFEF39
🌗 Shades and Tints of #EFEF39
Shades (adding black)
Tints (adding white)
🎚️ Tones of #EFEF39
Tones (adding gray / desaturating)
🌈 Hue Variations of #EFEF39
Hue Variations (shifting the color spectrum)
👁️ Preview of #EFEF39 in Use
Text on #EFEF39
This demonstrates text readability on the color background. (Click to edit)
#EFEF39 as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #EFEF39
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.
Soft Vivid Yellow is a medium, vibrant, warm yellow color with a hue angle of 60°, saturation of 85%, and lightness of 58%. Its RGB value is (239, 239, 57) and its CMYK breakdown is C:0% M:0% Y:76% K:6%.
This is a Spring (Vital) color palette archetype. Happiness, Positivity, Optimism, Caution. Yellow is the most luminous of all the colors of the spectrum.
Frequently Asked Questions About #EFEF39
What is the HEX code for Soft Vivid Yellow? +
The HEX code for Soft Vivid Yellow is #EFEF39. In CSS you can use it directly as color: #EFEF39; or as a background: background-color: #EFEF39;. 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 #EFEF39? +
The RGB value of #EFEF39 is rgb(239, 239, 57). This means the color contains 239 out of 255 parts red, 239 out of 255 parts green, and 57 out of 255 parts blue. Red is the strongest channel in this color mix. You can use the full RGB function in any CSS property: color: rgb(239, 239, 57);
What is the HSL value of #EFEF39? +
The HSL value of #EFEF39 is hsl(60, 85%, 58%). The hue is 60°, placing it in the yellow family on the color wheel. The saturation is 85%, making it vibrant. The lightness is 58%, 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 #EFEF39 a warm or cool color? +
#EFEF39 is classified as a warm color based on its hue angle of 60°. Warm colors — reds, oranges, and yellows — evoke energy, enthusiasm, and urgency. They tend to advance visually and draw the eye. In design, warm colors are often used for calls-to-action, food and hospitality brands, and anywhere a feeling of warmth or excitement is desired.
What is the CMYK value of #EFEF39? +
The approximate CMYK value of #EFEF39 is C:0% M:0% Y:76% K:6%. 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.
