The hexadecimal color code #666C19 represents a dark shade in the yellow family. In the RGB color model, this color is composed of 102 red, 108 green, and 25 blue, which translates to approximately 40% red, 42% green, and 10% 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, #666C19 has a hue of 64 degrees, a saturation level of 62%, and a lightness value of 26%. The hue angle of 64° places this color firmly in the yellow spectrum. In the HSV/HSB color model, this translates to a hue of 64°, saturation of 77%, and brightness/value of 42%.
For print applications using the CMYK color model, #666C19 would be reproduced using 6% cyan, 0% magenta, 77% yellow, and 58% black. The closest web-safe color is #666600, which may be useful for ensuring compatibility across older displays and systems.
This color works well in various design contexts. As a darker shade, it works well for text, headers, and creating visual weight in compositions. The high saturation makes this color vibrant and attention-grabbing, ideal for call-to-action buttons, highlights, and accent elements. When pairing #666C19 with other colors, consider its complementary color at hue 244° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 6712345, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #666C19
Tailwind CSS
lime-700
HEX
#666C19
RGB
rgb(102, 108, 25)
RGB %
40%, 42%, 10%
HSL
hsl(64, 62%, 26%)
HSV
hsv(64, 77%, 42%)
CMYK
6%, 0%, 77%, 58%
Decimal
6712345
Web Safe
#666600
🎨 Color Schemes for #666C19
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #666C19
🌗 Shades and Tints of #666C19
Shades (adding black)
Tints (adding white)
🎚️ Tones of #666C19
Tones (adding gray / desaturating)
🌈 Hue Variations of #666C19
Hue Variations (shifting the color spectrum)
👁️ Preview of #666C19 in Use
Text on #666C19
This demonstrates text readability on the color background. (Click to edit)
#666C19 as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #666C19
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 Warm Yellow is a dark, vibrant, warm yellow color with a hue angle of 64°, saturation of 62%, and lightness of 26%. Its RGB value is (102, 108, 25) and its CMYK breakdown is C:6% M:0% Y:77% K:58%.
This is a Winter (Deep) color palette archetype. Happiness, Positivity, Optimism, Caution. Yellow is the most luminous of all the colors of the spectrum.
Frequently Asked Questions About #666C19
What is the HEX code for Dark Warm Yellow? +
The HEX code for Dark Warm Yellow is #666C19. In CSS you can use it directly as color: #666C19; or as a background: background-color: #666C19;. 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 #666C19? +
The RGB value of #666C19 is rgb(102, 108, 25). This means the color contains 102 out of 255 parts red, 108 out of 255 parts green, and 25 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(102, 108, 25);
What is the HSL value of #666C19? +
The HSL value of #666C19 is hsl(64, 62%, 26%). The hue is 64°, placing it in the yellow family on the color wheel. The saturation is 62%, making it vibrant. The lightness is 26%, making it dark. HSL is the most useful format for programmatic color manipulation in CSS, as you can easily adjust lightness to create tints and shades.
Is #666C19 a warm or cool color? +
#666C19 is classified as a warm color based on its hue angle of 64°. 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 #666C19? +
The approximate CMYK value of #666C19 is C:6% M:0% Y:77% K:58%. 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.
