#1B3764 Color Information

Hex color code: #1B3764

#1B3764 is a cool blue color. In RGB it is (27, 55, 100), and in HSL it is (217°, 57%, 25%). It is commonly used in modern UI design.

Try:
Color NameDark Slate Gray
HEX
#1B3764
RGB
27, 55, 100
HSL
217°, 57%, 25%
CMYK
73%, 45%, 0%, 61%

Shades

CSS Usage
color: #1B3764;
background-color: #1B3764;
border-color: #1B3764;
box-shadow: 0 0 10px #1B3764;
border: 2px solid #1B3764;
Tailwind Usage
bg-[#1B3764]
text-[#1B3764]
border-[#1B3764]
shadow-[0_0_10px_1B3764]

Generate Gradient

Gradient CSS
background: linear-gradient(90deg, #1B3764, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #1B3764; color: #FFFFFF; }

Badge

New Feature
.badge { background-color: #1B3764; 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 #1B3764; background-color: #1B376415; }

Alert / Toast

This is an alert using your color as accent.
.alert { background-color: #1B376420; border-left: 4px solid #1B3764; }

Link / Accent

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

a { color: #1B3764; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #1B3764 in the color wheel.

Current Complementary Triadic Analogous

RGB, HSL and CMYK Values

RGB

27, 55, 100

Red: 27 / Green: 55 / Blue: 100

HSL

217°, 57%, 25%

Hue: 217° / Saturation: 57% / Lightness: 25%

CMYK

73%, 45%, 0%, 61%

Cyan: 73% / Magenta: 45% / Yellow: 0% / Key: 61%

What color is #1B3764?

#1B3764 is a blue-purple hue associated with creativity and luxury.

Color Shades

Complementary Colors

Color Palette

HEX to RGB

Convert #1B3764 to RGB:

rgb(27, 55, 100)HEX to RGB Converter →

HEX to HSL

Convert #1B3764 to HSL:

hsl(217, 57%, 25%)RGB to HSL Converter →

HEX to CMYK

Convert #1B3764 to CMYK:

cmyk(73%, 45%, 0%, 61%)Color Converter →

Color Meaning and Usage

#1B3764 is a peaceful blue color with RGB values of 27, 55, 100 and HSL of 217°, 57%, 25%. This blue-purple hue evokes creativity and luxury, making it suitable for a solid option for clean and minimal interfaces. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #1B3764 is #64481B, creating high-contrast pairings. For softer combinations, try analogous colors like #1B5C64.

Use #1B3764 in CSS: color: #1B3764 or background-color: #1B3764. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #1B3764

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

Contrast Ratio: 1.78:1
WCAG AA: Fail
WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #1B3764?

#1B3764 is a peaceful blue color - a blue-purple hue that evokes creativity and luxury.

What is the RGB value of #1B3764?

#1B3764 in RGB is (27, 55, 100) - 27 red, 55 green, and 100 blue.

How to use #1B3764 in CSS?

Use #1B3764 directly in your CSS properties like color or background-color.

What colors go well with #1B3764?

#64481B (complementary), #1B5C64 (analogous), and #0B1628 (lighter shade) work well with #1B3764.