#3F444B Color Information

Hex color code: #3F444B

A understated blue shade, #3F444B appears as (63, 68, 75) in RGB and (215°, 9%, 27%) in HSL. It is popular in mobile app design.

Try:

Color NameDark Slate Gray

HEX

#3F444B

RGB

63, 68, 75

HSL

215°, 9%, 27%

CMYK

16%, 9%, 0%, 71%

Shades

CSS Usage

color: #3F444B;
background-color: #3F444B;
border-color: #3F444B;
box-shadow: 0 0 10px #3F444B;
border: 2px solid #3F444B;

Tailwind Usage

bg-[#3F444B]
text-[#3F444B]
border-[#3F444B]
shadow-[0_0_10px_3F444B]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #3F444B, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #3F444B; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #3F444B; 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 #3F444B; background-color: #3F444B15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #3F444B20; border-left: 4px solid #3F444B; }

Link / Accent

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

a { color: #3F444B; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #3F444B in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

63, 68, 75

Red: 63 / Green: 68 / Blue: 75

HSL

215°, 9%, 27%

Hue: 215° / Saturation: 9% / Lightness: 27%

CMYK

16%, 9%, 0%, 71%

Cyan: 16% / Magenta: 9% / Yellow: 0% / Key: 71%

What color is #3F444B?

#3F444B is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

4B463F

Color Palette

HEX to RGB

Convert #3F444B to RGB:

rgb(63, 68, 75)HEX to RGB Converter →

HEX to HSL

Convert #3F444B to HSL:

hsl(215, 9%, 27%)RGB to HSL Converter →

HEX to CMYK

Convert #3F444B to CMYK:

cmyk(16%, 9%, 0%, 71%)Color Converter →

Color Meaning and Usage

A balanced blue tone, #3F444B has RGB (63, 68, 75) and HSL (215°, 9%, 27%). 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 #3F444B is #4B463F, creating high-contrast pairings. For softer combinations, try analogous colors like #3F4A4B.

Use #3F444B in CSS: color: #3F444B or background-color: #3F444B. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #3F444B

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

Contrast Ratio: 2.14:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #3F444B?

#3F444B is a balanced blue color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #3F444B?

#3F444B in RGB is (63, 68, 75) - 63 red, 68 green, and 75 blue.

How to use #3F444B in CSS?

Use #3F444B directly in your CSS properties like color or background-color.

What colors go well with #3F444B?

#4B463F (complementary), #3F4A4B (analogous), and #1C1E21 (lighter shade) work well with #3F444B.