#378FD8 Color Information

Hex color code: #378FD8

A tranquil blue shade, #378FD8 appears as (55, 143, 216) in RGB and (207°, 67%, 53%) in HSL. It is widely used in graphic design.

Try:

Color NameRoyal Blue

HEX

#378FD8

RGB

55, 143, 216

HSL

207°, 67%, 53%

CMYK

75%, 34%, 0%, 15%

Shades

CSS Usage

color: #378FD8;
background-color: #378FD8;
border-color: #378FD8;
box-shadow: 0 0 10px #378FD8;
border: 2px solid #378FD8;

Tailwind Usage

bg-[#378FD8]
text-[#378FD8]
border-[#378FD8]
shadow-[0_0_10px_378FD8]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #378FD8, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #378FD8; color: #000000; }

Badge

New Feature

.badge { background-color: #378FD8; color: #000000; }

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 #378FD8; background-color: #378FD815; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #378FD820; border-left: 4px solid #378FD8; }

Link / Accent

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

a { color: #378FD8; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #378FD8 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

55, 143, 216

Red: 55 / Green: 143 / Blue: 216

HSL

207°, 67%, 53%

Hue: 207° / Saturation: 67% / Lightness: 53%

CMYK

75%, 34%, 0%, 15%

Cyan: 75% / Magenta: 34% / Yellow: 0% / Key: 15%

What color is #378FD8?

#378FD8 is a cyan-blue hue associated with trust and professionalism.

Color Shades

Complementary Colors

D77F37

Color Palette

HEX to RGB

Convert #378FD8 to RGB:

rgb(55, 143, 216)HEX to RGB Converter →

HEX to HSL

Convert #378FD8 to HSL:

hsl(207, 67%, 53%)RGB to HSL Converter →

HEX to CMYK

Convert #378FD8 to CMYK:

cmyk(75%, 34%, 0%, 15%)Color Converter →

Color Meaning and Usage

A cool blue tone, #378FD8 has RGB (55, 143, 216) and HSL (207°, 67%, 53%). Known for evoking trust and professionalism, this cyan-blue hue is commonly used in modern UI design. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #378FD8 is #D77F37, creating high-contrast pairings. For softer combinations, try analogous colors like #37D7CF.

Use #378FD8 in CSS: color: #378FD8 or background-color: #378FD8. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #378FD8

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

Contrast Ratio: 6.08:1

WCAG AA: Pass

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #378FD8?

#378FD8 is a cool blue color - a cyan-blue hue that evokes trust and professionalism.

What is the RGB value of #378FD8?

#378FD8 in RGB is (55, 143, 216) - 55 red, 143 green, and 216 blue.

How to use #378FD8 in CSS?

Use #378FD8 directly in your CSS properties like color or background-color.

What colors go well with #378FD8?

#D77F37 (complementary), #37D7CF (analogous), and #2067A2 (lighter shade) work well with #378FD8.