#1D243F Color Information

Hex color code: #1D243F

The hex color #1D243F is a rich blue with RGB values of (29, 36, 63) and HSL of (228°, 37%, 18%). It is popular in mobile app design.

Try:

Color NameDark Slate Gray

HEX

#1D243F

RGB

29, 36, 63

HSL

228°, 37%, 18%

CMYK

54%, 43%, 0%, 75%

Shades

CSS Usage

color: #1D243F;
background-color: #1D243F;
border-color: #1D243F;
box-shadow: 0 0 10px #1D243F;
border: 2px solid #1D243F;

Tailwind Usage

bg-[#1D243F]
text-[#1D243F]
border-[#1D243F]
shadow-[0_0_10px_1D243F]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #1D243F, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #1D243F; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #1D243F; 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 #1D243F; background-color: #1D243F15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #1D243F20; border-left: 4px solid #1D243F; }

Link / Accent

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

a { color: #1D243F; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #1D243F in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

29, 36, 63

Red: 29 / Green: 36 / Blue: 63

HSL

228°, 37%, 18%

Hue: 228° / Saturation: 37% / Lightness: 18%

CMYK

54%, 43%, 0%, 75%

Cyan: 54% / Magenta: 43% / Yellow: 0% / Key: 75%

What color is #1D243F?

#1D243F is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

3F381D

Color Palette

HEX to RGB

Convert #1D243F to RGB:

rgb(29, 36, 63)HEX to RGB Converter →

HEX to HSL

Convert #1D243F to HSL:

hsl(228, 37%, 18%)RGB to HSL Converter →

HEX to CMYK

Convert #1D243F to CMYK:

cmyk(54%, 43%, 0%, 75%)Color Converter →

Color Meaning and Usage

A dramatic blue tone, #1D243F has RGB (29, 36, 63) and HSL (228°, 37%, 18%). Known for evoking sophistication and elegance, this very dark shade is a common choice for dashboards and SaaS products. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #1D243F is #3F381D, creating high-contrast pairings. For softer combinations, try analogous colors like #1D353F.

Use #1D243F in CSS: color: #1D243F or background-color: #1D243F. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #1D243F

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

Contrast Ratio: 1.38:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #1D243F?

#1D243F is a dramatic blue color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #1D243F?

#1D243F in RGB is (29, 36, 63) - 29 red, 36 green, and 63 blue.

How to use #1D243F in CSS?

Use #1D243F directly in your CSS properties like color or background-color.

What colors go well with #1D243F?

#3F381D (complementary), #1D353F (analogous), and #05060A (lighter shade) work well with #1D243F.