#251D8B Color Information

Hex color code: #251D8B

#251D8B is a cool blue color. In RGB it is (37, 29, 139), and in HSL it is (244°, 65%, 33%). It is commonly used in modern UI design.

Try:
Color NameDark Slate Blue
HEX
#251D8B
RGB
37, 29, 139
HSL
244°, 65%, 33%
CMYK
73%, 79%, 0%, 45%

Shades

CSS Usage
color: #251D8B;
background-color: #251D8B;
border-color: #251D8B;
box-shadow: 0 0 10px #251D8B;
border: 2px solid #251D8B;
Tailwind Usage
bg-[#251D8B]
text-[#251D8B]
border-[#251D8B]
shadow-[0_0_10px_251D8B]

Generate Gradient

Gradient CSS
background: linear-gradient(90deg, #251D8B, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #251D8B; color: #FFFFFF; }

Badge

New Feature
.badge { background-color: #251D8B; 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 #251D8B; background-color: #251D8B15; }

Alert / Toast

This is an alert using your color as accent.
.alert { background-color: #251D8B20; border-left: 4px solid #251D8B; }

Link / Accent

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

a { color: #251D8B; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #251D8B in the color wheel.

Current Complementary Triadic Analogous

RGB, HSL and CMYK Values

RGB

37, 29, 139

Red: 37 / Green: 29 / Blue: 139

HSL

244°, 65%, 33%

Hue: 244° / Saturation: 65% / Lightness: 33%

CMYK

73%, 79%, 0%, 45%

Cyan: 73% / Magenta: 79% / Yellow: 0% / Key: 45%

What color is #251D8B?

#251D8B is a blue-purple hue associated with creativity and luxury.

Color Shades

Complementary Colors

Color Palette

HEX to RGB

Convert #251D8B to RGB:

rgb(37, 29, 139)HEX to RGB Converter →

HEX to HSL

Convert #251D8B to HSL:

hsl(244, 65%, 33%)RGB to HSL Converter →

HEX to CMYK

Convert #251D8B to CMYK:

cmyk(73%, 79%, 0%, 45%)Color Converter →

Color Meaning and Usage

#251D8B is a serene blue color with RGB values of 37, 29, 139 and HSL of 244°, 65%, 33%. This blue-purple hue evokes creativity and luxury, making it suitable for frequently chosen for fintech and productivity apps. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #251D8B is #848B1D, creating high-contrast pairings. For softer combinations, try analogous colors like #1D4D8B.

Use #251D8B in CSS: color: #251D8B or background-color: #251D8B. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #251D8B

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

Contrast Ratio: 1.63:1
WCAG AA: Fail
WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #251D8B?

#251D8B is a serene blue color - a blue-purple hue that evokes creativity and luxury.

What is the RGB value of #251D8B?

#251D8B in RGB is (37, 29, 139) - 37 red, 29 green, and 139 blue.

How to use #251D8B in CSS?

Use #251D8B directly in your CSS properties like color or background-color.

What colors go well with #251D8B?

#848B1D (complementary), #1D4D8B (analogous), and #14104C (lighter shade) work well with #251D8B.