#312121 Color Information

Hex color code: #312121

#312121 is a rich red color. In RGB it is (49, 33, 33), and in HSL it is (0°, 20%, 16%). It is popular in mobile app design.

Try:

Color NameDark Slate Gray

HEX

#312121

RGB

49, 33, 33

HSL

0°, 20%, 16%

CMYK

0%, 33%, 33%, 81%

Shades

CSS Usage

color: #312121;
background-color: #312121;
border-color: #312121;
box-shadow: 0 0 10px #312121;
border: 2px solid #312121;

Tailwind Usage

bg-[#312121]
text-[#312121]
border-[#312121]
shadow-[0_0_10px_312121]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #312121, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #312121; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #312121; 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 #312121; background-color: #31212115; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #31212120; border-left: 4px solid #312121; }

Link / Accent

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

a { color: #312121; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #312121 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

49, 33, 33

Red: 49 / Green: 33 / Blue: 33

HSL

0°, 20%, 16%

Hue: 0° / Saturation: 20% / Lightness: 16%

CMYK

0%, 33%, 33%, 81%

Cyan: 0% / Magenta: 33% / Yellow: 33% / Key: 81%

What color is #312121?

#312121 is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

213131

Color Palette

HEX to RGB

Convert #312121 to RGB:

rgb(49, 33, 33)HEX to RGB Converter →

HEX to HSL

Convert #312121 to HSL:

hsl(0, 20%, 16%)RGB to HSL Converter →

HEX to CMYK

Convert #312121 to CMYK:

cmyk(0%, 33%, 33%, 81%)Color Converter →

Color Meaning and Usage

#312121 is a deep red color with RGB values of 49, 33, 33 and HSL of 0°, 20%, 16%. This very dark shade evokes sophistication and elegance, making it suitable for widely used in graphic design. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #312121 is #213131, creating high-contrast pairings. For softer combinations, try analogous colors like #312129.

Use #312121 in CSS: color: #312121 or background-color: #312121. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #312121

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

Contrast Ratio: 1.37:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #312121?

#312121 is a deep red color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #312121?

#312121 in RGB is (49, 33, 33) - 49 red, 33 green, and 33 blue.

How to use #312121 in CSS?

Use #312121 directly in your CSS properties like color or background-color.

What colors go well with #312121?

#213131 (complementary), #312129 (analogous), and #030202 (lighter shade) work well with #312121.