#212731 Color Information

Hex color code: #212731

A dramatic blue shade, #212731 appears as (33, 39, 49) in RGB and (218°, 20%, 16%) in HSL. It is typically applied in digital products.

Try:

Color NameDark Slate Gray

HEX

#212731

RGB

33, 39, 49

HSL

218°, 20%, 16%

CMYK

33%, 20%, 0%, 81%

Shades

CSS Usage

color: #212731;
background-color: #212731;
border-color: #212731;
box-shadow: 0 0 10px #212731;
border: 2px solid #212731;

Tailwind Usage

bg-[#212731]
text-[#212731]
border-[#212731]
shadow-[0_0_10px_212731]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #212731, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #212731; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #212731; 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 #212731; background-color: #21273115; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #21273120; border-left: 4px solid #212731; }

Link / Accent

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

a { color: #212731; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #212731 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

33, 39, 49

Red: 33 / Green: 39 / Blue: 49

HSL

218°, 20%, 16%

Hue: 218° / Saturation: 20% / Lightness: 16%

CMYK

33%, 20%, 0%, 81%

Cyan: 33% / Magenta: 20% / Yellow: 0% / Key: 81%

What color is #212731?

#212731 is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

312B21

Color Palette

HEX to RGB

Convert #212731 to RGB:

rgb(33, 39, 49)HEX to RGB Converter →

HEX to HSL

Convert #212731 to HSL:

hsl(218, 20%, 16%)RGB to HSL Converter →

HEX to CMYK

Convert #212731 to CMYK:

cmyk(33%, 20%, 0%, 81%)Color Converter →

Color Meaning and Usage

#212731 is a dramatic blue color with RGB values of 33, 39, 49 and HSL of 218°, 20%, 16%. This very dark shade evokes sophistication and elegance, making it suitable for popular in mobile app design. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #212731 is #312B21, creating high-contrast pairings. For softer combinations, try analogous colors like #212F31.

Use #212731 in CSS: color: #212731 or background-color: #212731. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #212731

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

Contrast Ratio: 1.40:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #212731?

#212731 is a dramatic blue color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #212731?

#212731 in RGB is (33, 39, 49) - 33 red, 39 green, and 49 blue.

How to use #212731 in CSS?

Use #212731 directly in your CSS properties like color or background-color.

What colors go well with #212731?

#312B21 (complementary), #212F31 (analogous), and #020203 (lighter shade) work well with #212731.