#424B57 Color Information

Hex color code: #424B57

#424B57 is a understated blue color. In RGB it is (66, 75, 87), and in HSL it is (214°, 14%, 30%). It is widely used in graphic design.

Try:
Color NameDark Slate Gray
HEX
#424B57
RGB
66, 75, 87
HSL
214°, 14%, 30%
CMYK
24%, 14%, 0%, 66%

Shades

CSS Usage
color: #424B57;
background-color: #424B57;
border-color: #424B57;
box-shadow: 0 0 10px #424B57;
border: 2px solid #424B57;
Tailwind Usage
bg-[#424B57]
text-[#424B57]
border-[#424B57]
shadow-[0_0_10px_424B57]

Generate Gradient

Gradient CSS
background: linear-gradient(90deg, #424B57, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #424B57; color: #FFFFFF; }

Badge

New Feature
.badge { background-color: #424B57; 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 #424B57; background-color: #424B5715; }

Alert / Toast

This is an alert using your color as accent.
.alert { background-color: #424B5720; border-left: 4px solid #424B57; }

Link / Accent

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

a { color: #424B57; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #424B57 in the color wheel.

Current Complementary Triadic Analogous

RGB, HSL and CMYK Values

RGB

66, 75, 87

Red: 66 / Green: 75 / Blue: 87

HSL

214°, 14%, 30%

Hue: 214° / Saturation: 14% / Lightness: 30%

CMYK

24%, 14%, 0%, 66%

Cyan: 24% / Magenta: 14% / Yellow: 0% / Key: 66%

What color is #424B57?

#424B57 is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

Color Palette

HEX to RGB

Convert #424B57 to RGB:

rgb(66, 75, 87)HEX to RGB Converter →

HEX to HSL

Convert #424B57 to HSL:

hsl(214, 14%, 30%)RGB to HSL Converter →

HEX to CMYK

Convert #424B57 to CMYK:

cmyk(24%, 14%, 0%, 66%)Color Converter →

Color Meaning and Usage

A balanced blue tone, #424B57 has RGB (66, 75, 87) and HSL (214°, 14%, 30%). Known for evoking balance and subtlety, this desaturated neutral is typically applied in digital products. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #424B57 is #574E42, creating high-contrast pairings. For softer combinations, try analogous colors like #425657.

Use #424B57 in CSS: color: #424B57 or background-color: #424B57. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #424B57

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

Contrast Ratio: 2.38:1
WCAG AA: Fail
WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #424B57?

#424B57 is a balanced blue color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #424B57?

#424B57 in RGB is (66, 75, 87) - 66 red, 75 green, and 87 blue.

How to use #424B57 in CSS?

Use #424B57 directly in your CSS properties like color or background-color.

What colors go well with #424B57?

#574E42 (complementary), #425657 (analogous), and #21262C (lighter shade) work well with #424B57.