#403F3F Color Information

Hex color code: #403F3F

A balanced red shade, #403F3F appears as (64, 63, 63) in RGB and (0°, 1%, 25%) in HSL. It is often used for branding and logos.

Try:

Color NameDark Slate Gray

HEX

#403F3F

RGB

64, 63, 63

HSL

0°, 1%, 25%

CMYK

0%, 2%, 2%, 75%

Shades

CSS Usage

color: #403F3F;
background-color: #403F3F;
border-color: #403F3F;
box-shadow: 0 0 10px #403F3F;
border: 2px solid #403F3F;

Tailwind Usage

bg-[#403F3F]
text-[#403F3F]
border-[#403F3F]
shadow-[0_0_10px_403F3F]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #403F3F, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #403F3F; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #403F3F; 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 #403F3F; background-color: #403F3F15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #403F3F20; border-left: 4px solid #403F3F; }

Link / Accent

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

a { color: #403F3F; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #403F3F in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

64, 63, 63

Red: 64 / Green: 63 / Blue: 63

HSL

0°, 1%, 25%

Hue: 0° / Saturation: 1% / Lightness: 25%

CMYK

0%, 2%, 2%, 75%

Cyan: 0% / Magenta: 2% / Yellow: 2% / Key: 75%

What color is #403F3F?

#403F3F is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

3F4040

Color Palette

HEX to RGB

Convert #403F3F to RGB:

rgb(64, 63, 63)HEX to RGB Converter →

HEX to HSL

Convert #403F3F to HSL:

hsl(0, 1%, 25%)RGB to HSL Converter →

HEX to CMYK

Convert #403F3F to CMYK:

cmyk(0%, 2%, 2%, 75%)Color Converter →

Color Meaning and Usage

#403F3F is a neutral red color with RGB values of 64, 63, 63 and HSL of 0°, 1%, 25%. This desaturated neutral evokes balance and subtlety, making it suitable for a solid option for clean and minimal interfaces. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #403F3F is #3F4040, creating high-contrast pairings. For softer combinations, try analogous colors like #403F40.

Use #403F3F in CSS: color: #403F3F or background-color: #403F3F. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #403F3F

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

Contrast Ratio: 2.00:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #403F3F?

#403F3F is a neutral red color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #403F3F?

#403F3F in RGB is (64, 63, 63) - 64 red, 63 green, and 63 blue.

How to use #403F3F in CSS?

Use #403F3F directly in your CSS properties like color or background-color.

What colors go well with #403F3F?

#3F4040 (complementary), #403F40 (analogous), and #1A1919 (lighter shade) work well with #403F3F.