#183744 Color Information

Hex color code: #183744

The hex color #183744 is a intense blue with RGB values of (24, 55, 68) and HSL of (198°, 48%, 18%). It is popular in mobile app design.

Try:
Color NameDark Slate Gray
HEX
#183744
RGB
24, 55, 68
HSL
198°, 48%, 18%
CMYK
65%, 19%, 0%, 73%

Shades

CSS Usage
color: #183744;
background-color: #183744;
border-color: #183744;
box-shadow: 0 0 10px #183744;
border: 2px solid #183744;
Tailwind Usage
bg-[#183744]
text-[#183744]
border-[#183744]
shadow-[0_0_10px_183744]

Generate Gradient

→
Gradient CSS
background: linear-gradient(90deg, #183744, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #183744; color: #FFFFFF; }

Badge

New Feature
.badge { background-color: #183744; color: #FFFFFF; }

Text Highlight

The quick brown fox jumps over the lazy dog. highlighted text example shows how the color looks as a text highlight.

Card

Card Title

This card uses your color as a border accent.

.card-accent { border: 2px solid #183744; background-color: #18374415; }

Alert / Toast

This is an alert using your color as accent.
.alert { background-color: #18374420; border-left: 4px solid #183744; }

Link / Accent

This is a paragraph with a link using your color. The color can be applied to interactive elements.

a { color: #183744; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #183744 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

24, 55, 68

Red: 24 / Green: 55 / Blue: 68

HSL

198°, 48%, 18%

Hue: 198° / Saturation: 48% / Lightness: 18%

CMYK

65%, 19%, 0%, 73%

Cyan: 65% / Magenta: 19% / Yellow: 0% / Key: 73%

What color is #183744?

#183744 is a very dark shade associated with sophistication and elegance.

Color Shades

FFFFFF
BAC3C7
74878F
2F4B57

Complementary Colors

442518

Color Palette

442518Complementary
18443BAnalogous
182144
441837Triadic
374418
000000Shade
04090BShade
2C647DShade
4092B5Shade

HEX to RGB

Convert #183744 to RGB:

rgb(24, 55, 68)HEX to RGB Converter →

HEX to HSL

Convert #183744 to HSL:

hsl(198, 48%, 18%)RGB to HSL Converter →

HEX to CMYK

Convert #183744 to CMYK:

cmyk(65%, 19%, 0%, 73%)Color Converter →

Color Meaning and Usage

A rich blue tone, #183744 has RGB (24, 55, 68) and HSL (198°, 48%, 18%). Known for evoking sophistication and elegance, this very dark shade is well suited for marketing pages and hero sections. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #183744 is #442518, creating high-contrast pairings. For softer combinations, try analogous colors like #18443B.

Use #183744 in CSS: color: #183744 or background-color: #183744. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #183744

Sample text on this color - The quick brown fox jumps over the lazy dog.

Contrast Ratio: 1.67:1
WCAG AA: Fail
WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #183744?

#183744 is a rich blue color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #183744?

#183744 in RGB is (24, 55, 68) - 24 red, 55 green, and 68 blue.

How to use #183744 in CSS?

Use #183744 directly in your CSS properties like color or background-color.

What colors go well with #183744?

#442518 (complementary), #18443B (analogous), and #04090B (lighter shade) work well with #183744.