The hexadecimal color code #99E401 represents a medium shade in the yellow family. In the RGB color model, this color is composed of 153 red, 228 green, and 1 blue, which translates to approximately 60% red, 89% green, and 0% 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, #99E401 has a hue of 80 degrees, a saturation level of 99%, and a lightness value of 45%. The hue angle of 80° places this color firmly in the yellow spectrum. In the HSV/HSB color model, this translates to a hue of 80°, saturation of 100%, and brightness/value of 89%.
For print applications using the CMYK color model, #99E401 would be reproduced using 33% cyan, 0% magenta, 100% yellow, and 11% black. The closest web-safe color is #99CC00, 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 #99E401 with other colors, consider its complementary color at hue 260° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 10085377, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #99E401
Tailwind CSS
lime-500
HEX
#99E401
RGB
rgb(153, 228, 1)
RGB %
60%, 89%, 0%
HSL
hsl(80, 99%, 45%)
HSV
hsv(80, 100%, 89%)
CMYK
33%, 0%, 100%, 11%
Decimal
10085377
Web Safe
#99CC00
🎨 Color Schemes for #99E401
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #99E401
🌗 Shades and Tints of #99E401
Shades (adding black)
Tints (adding white)
🎚️ Tones of #99E401
Tones (adding gray / desaturating)
🌈 Hue Variations of #99E401
Hue Variations (shifting the color spectrum)
👁️ Preview of #99E401 in Use
Text on #99E401
This demonstrates text readability on the color background. (Click to edit)
#99E401 as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #99E401
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.
Vivid Chartreuse is a medium, vibrant, warm yellow color with a hue angle of 80°, saturation of 99%, and lightness of 45%. Its RGB value is (153, 228, 1) and its CMYK breakdown is C:33% M:0% Y:100% K:11%.
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 #99E401
What is the HEX code for Vivid Chartreuse? +
The HEX code for Vivid Chartreuse is #99E401. In CSS you can use it directly as color: #99E401; or as a background: background-color: #99E401;. 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 #99E401? +
The RGB value of #99E401 is rgb(153, 228, 1). This means the color contains 153 out of 255 parts red, 228 out of 255 parts green, and 1 out of 255 parts blue. Red is the weakest (with blue dominant) channel in this color mix. You can use the full RGB function in any CSS property: color: rgb(153, 228, 1);
What is the HSL value of #99E401? +
The HSL value of #99E401 is hsl(80, 99%, 45%). The hue is 80°, placing it in the yellow family on the color wheel. The saturation is 99%, making it vibrant. The lightness is 45%, 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 #99E401 a warm or cool color? +
#99E401 is classified as a warm color based on its hue angle of 80°. 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 #99E401? +
The approximate CMYK value of #99E401 is C:33% M:0% Y:100% K:11%. 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.
