#151D3C Color Information

Hex color code: #151D3C

A dramatic blue shade, #151D3C appears as (21, 29, 60) in RGB and (228°, 48%, 16%) in HSL. It is typically applied in digital products.

Try:

Color NameDark Slate Gray

HEX

#151D3C

RGB

21, 29, 60

HSL

228°, 48%, 16%

CMYK

65%, 52%, 0%, 76%

Shades

CSS Usage

color: #151D3C;
background-color: #151D3C;
border-color: #151D3C;
box-shadow: 0 0 10px #151D3C;
border: 2px solid #151D3C;

Tailwind Usage

bg-[#151D3C]
text-[#151D3C]
border-[#151D3C]
shadow-[0_0_10px_151D3C]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #151D3C, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #151D3C; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #151D3C; 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 #151D3C; background-color: #151D3C15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #151D3C20; border-left: 4px solid #151D3C; }

Link / Accent

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

a { color: #151D3C; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #151D3C in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

21, 29, 60

Red: 21 / Green: 29 / Blue: 60

HSL

228°, 48%, 16%

Hue: 228° / Saturation: 48% / Lightness: 16%

CMYK

65%, 52%, 0%, 76%

Cyan: 65% / Magenta: 52% / Yellow: 0% / Key: 76%

What color is #151D3C?

#151D3C is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

3C3515

Color Palette

HEX to RGB

Convert #151D3C to RGB:

rgb(21, 29, 60)HEX to RGB Converter →

HEX to HSL

Convert #151D3C to HSL:

hsl(228, 48%, 16%)RGB to HSL Converter →

HEX to CMYK

Convert #151D3C to CMYK:

cmyk(65%, 52%, 0%, 76%)Color Converter →

Color Meaning and Usage

#151D3C is a dark blue color with RGB values of 21, 29, 60 and HSL of 228°, 48%, 16%. This very dark shade evokes sophistication and elegance, making it suitable for commonly used in modern UI design. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #151D3C is #3C3515, creating high-contrast pairings. For softer combinations, try analogous colors like #15313C.

Use #151D3C in CSS: color: #151D3C or background-color: #151D3C. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #151D3C

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

Contrast Ratio: 1.27:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #151D3C?

#151D3C is a dark blue color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #151D3C?

#151D3C in RGB is (21, 29, 60) - 21 red, 29 green, and 60 blue.

How to use #151D3C in CSS?

Use #151D3C directly in your CSS properties like color or background-color.

What colors go well with #151D3C?

#3C3515 (complementary), #15313C (analogous), and #010204 (lighter shade) work well with #151D3C.