#3F3F4B Color Information

Hex color code: #3F3F4B

A neutral blue shade, #3F3F4B appears as (63, 63, 75) in RGB and (240°, 9%, 27%) in HSL. It is commonly used in modern UI design.

Try:
Color NameDark Slate Gray
HEX
#3F3F4B
RGB
63, 63, 75
HSL
240°, 9%, 27%
CMYK
16%, 16%, 0%, 71%

Shades

CSS Usage
color: #3F3F4B;
background-color: #3F3F4B;
border-color: #3F3F4B;
box-shadow: 0 0 10px #3F3F4B;
border: 2px solid #3F3F4B;
Tailwind Usage
bg-[#3F3F4B]
text-[#3F3F4B]
border-[#3F3F4B]
shadow-[0_0_10px_3F3F4B]

Generate Gradient

Gradient CSS
background: linear-gradient(90deg, #3F3F4B, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #3F3F4B; color: #FFFFFF; }

Badge

New Feature
.badge { background-color: #3F3F4B; 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 #3F3F4B; background-color: #3F3F4B15; }

Alert / Toast

This is an alert using your color as accent.
.alert { background-color: #3F3F4B20; border-left: 4px solid #3F3F4B; }

Link / Accent

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

a { color: #3F3F4B; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #3F3F4B in the color wheel.

Current Complementary Triadic Analogous

RGB, HSL and CMYK Values

RGB

63, 63, 75

Red: 63 / Green: 63 / Blue: 75

HSL

240°, 9%, 27%

Hue: 240° / Saturation: 9% / Lightness: 27%

CMYK

16%, 16%, 0%, 71%

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

What color is #3F3F4B?

#3F3F4B is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

Color Palette

HEX to RGB

Convert #3F3F4B to RGB:

rgb(63, 63, 75)HEX to RGB Converter →

HEX to HSL

Convert #3F3F4B to HSL:

hsl(240, 9%, 27%)RGB to HSL Converter →

HEX to CMYK

Convert #3F3F4B to CMYK:

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

Color Meaning and Usage

#3F3F4B is a understated blue color with RGB values of 63, 63, 75 and HSL of 240°, 9%, 27%. This desaturated neutral evokes balance and subtlety, making it suitable for well suited for marketing pages and hero sections. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #3F3F4B is #4B4B3F, creating high-contrast pairings. For softer combinations, try analogous colors like #3F454B.

Use #3F3F4B in CSS: color: #3F3F4B or background-color: #3F3F4B. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #3F3F4B

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

Contrast Ratio: 2.02:1
WCAG AA: Fail
WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #3F3F4B?

#3F3F4B is a understated blue color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #3F3F4B?

#3F3F4B in RGB is (63, 63, 75) - 63 red, 63 green, and 75 blue.

How to use #3F3F4B in CSS?

Use #3F3F4B directly in your CSS properties like color or background-color.

What colors go well with #3F3F4B?

#4B4B3F (complementary), #3F454B (analogous), and #1C1C21 (lighter shade) work well with #3F3F4B.