#212037 Color Information

Hex color code: #212037

#212037 is a deep blue color. In RGB it is (33, 32, 55), and in HSL it is (243°, 26%, 17%). It is commonly used in modern UI design.

Try:

Color NameDark Slate Gray

HEX

#212037

RGB

33, 32, 55

HSL

243°, 26%, 17%

CMYK

40%, 42%, 0%, 78%

Shades

CSS Usage

color: #212037;
background-color: #212037;
border-color: #212037;
box-shadow: 0 0 10px #212037;
border: 2px solid #212037;

Tailwind Usage

bg-[#212037]
text-[#212037]
border-[#212037]
shadow-[0_0_10px_212037]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #212037, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #212037; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #212037; 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 #212037; background-color: #21203715; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #21203720; border-left: 4px solid #212037; }

Link / Accent

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

a { color: #212037; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #212037 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

33, 32, 55

Red: 33 / Green: 32 / Blue: 55

HSL

243°, 26%, 17%

Hue: 243° / Saturation: 26% / Lightness: 17%

CMYK

40%, 42%, 0%, 78%

Cyan: 40% / Magenta: 42% / Yellow: 0% / Key: 78%

What color is #212037?

#212037 is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

353720

Color Palette

HEX to RGB

Convert #212037 to RGB:

rgb(33, 32, 55)HEX to RGB Converter →

HEX to HSL

Convert #212037 to HSL:

hsl(243, 26%, 17%)RGB to HSL Converter →

HEX to CMYK

Convert #212037 to CMYK:

cmyk(40%, 42%, 0%, 78%)Color Converter →

Color Meaning and Usage

A rich blue tone, #212037 has RGB (33, 32, 55) and HSL (243°, 26%, 17%). Known for evoking sophistication and elegance, this very dark shade is often used for buttons, highlights, and accents. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #212037 is #353720, creating high-contrast pairings. For softer combinations, try analogous colors like #202A37.

Use #212037 in CSS: color: #212037 or background-color: #212037. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #212037

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

Contrast Ratio: 1.33:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #212037?

#212037 is a rich blue color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #212037?

#212037 in RGB is (33, 32, 55) - 33 red, 32 green, and 55 blue.

How to use #212037 in CSS?

Use #212037 directly in your CSS properties like color or background-color.

What colors go well with #212037?

#353720 (complementary), #202A37 (analogous), and #040406 (lighter shade) work well with #212037.