The hexadecimal color code #21454A represents a dark shade in the cyan family. In the RGB color model, this color is composed of 33 red, 69 green, and 74 blue, which translates to approximately 13% red, 27% green, and 29% blue. This makes it a slightly desaturated color with cool undertones that can evoke different emotional responses depending on its application.
When analyzed in the HSL (Hue, Saturation, Lightness) color space, #21454A has a hue of 187 degrees, a saturation level of 38%, and a lightness value of 21%. The hue angle of 187° places this color firmly in the cyan spectrum. In the HSV/HSB color model, this translates to a hue of 187°, saturation of 55%, and brightness/value of 29%.
For print applications using the CMYK color model, #21454A would be reproduced using 55% cyan, 7% magenta, 0% yellow, and 71% black. The closest web-safe color is #333333, 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 moderate to low saturation gives this color a sophisticated, muted quality that works well in professional and minimalist designs. When pairing #21454A with other colors, consider its complementary color at hue 7° for maximum contrast, or use analogous colors within 30° of its hue for harmonious combinations. The decimal representation of this color is 2180426, which can be useful in certain programming contexts.
🔢 Color Conversion Codes for #21454A
Tailwind CSS
teal-900
HEX
#21454A
RGB
rgb(33, 69, 74)
RGB %
13%, 27%, 29%
HSL
hsl(187, 38%, 21%)
HSV
hsv(187, 55%, 29%)
CMYK
55%, 7%, 0%, 71%
Decimal
2180426
Web Safe
#333333
🎨 Color Schemes for #21454A
Complementary
Analogous
Triadic
Split Complementary
Tetradic (Rectangle)
🔄 Alternatives to #21454A
🌗 Shades and Tints of #21454A
Shades (adding black)
Tints (adding white)
🎚️ Tones of #21454A
Tones (adding gray / desaturating)
🌈 Hue Variations of #21454A
Hue Variations (shifting the color spectrum)
👁️ Preview of #21454A in Use
Text on #21454A
This demonstrates text readability on the color background. (Click to edit)
#21454A as Text
This shows the color used as text on white. (Click to edit)
👓 Color Blindness Simulation for #21454A
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.
Deep Cyan is a dark, moderately saturated, cool cyan color with a hue angle of 187°, saturation of 38%, and lightness of 21%. Its RGB value is (33, 69, 74) and its CMYK breakdown is C:55% M:7% Y:0% K:71%.
This is a Winter (Deep) color palette archetype. Calm, Clarity, Communication, Tech. Cyan/Teal promotes clear thinking and emotional balance.
Frequently Asked Questions About #21454A
What is the HEX code for Deep Cyan? +
The HEX code for Deep Cyan is #21454A. In CSS you can use it directly as color: #21454A; or as a background: background-color: #21454A;. 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 #21454A? +
The RGB value of #21454A is rgb(33, 69, 74). This means the color contains 33 out of 255 parts red, 69 out of 255 parts green, and 74 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(33, 69, 74);
What is the HSL value of #21454A? +
The HSL value of #21454A is hsl(187, 38%, 21%). The hue is 187°, placing it in the cyan family on the color wheel. The saturation is 38%, making it moderately saturated. The lightness is 21%, 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 #21454A a warm or cool color? +
#21454A is classified as a cool color based on its hue angle of 187°. 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 #21454A? +
The approximate CMYK value of #21454A is C:55% M:7% Y:0% K:71%. 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.
