#212631 Color Information

Hex color code: #212631

#212631 is a intense blue color. In RGB it is (33, 38, 49), and in HSL it is (221°, 20%, 16%). It is popular in mobile app design.

Try:
Color NameDark Slate Gray
HEX
#212631
RGB
33, 38, 49
HSL
221°, 20%, 16%
CMYK
33%, 22%, 0%, 81%

Shades

CSS Usage
color: #212631;
background-color: #212631;
border-color: #212631;
box-shadow: 0 0 10px #212631;
border: 2px solid #212631;
Tailwind Usage
bg-[#212631]
text-[#212631]
border-[#212631]
shadow-[0_0_10px_212631]

Generate Gradient

Gradient CSS
background: linear-gradient(90deg, #212631, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #212631; color: #FFFFFF; }

Badge

New Feature
.badge { background-color: #212631; 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 #212631; background-color: #21263115; }

Alert / Toast

This is an alert using your color as accent.
.alert { background-color: #21263120; border-left: 4px solid #212631; }

Link / Accent

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

a { color: #212631; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #212631 in the color wheel.

Current Complementary Triadic Analogous

RGB, HSL and CMYK Values

RGB

33, 38, 49

Red: 33 / Green: 38 / Blue: 49

HSL

221°, 20%, 16%

Hue: 221° / Saturation: 20% / Lightness: 16%

CMYK

33%, 22%, 0%, 81%

Cyan: 33% / Magenta: 22% / Yellow: 0% / Key: 81%

What color is #212631?

#212631 is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

Color Palette

HEX to RGB

Convert #212631 to RGB:

rgb(33, 38, 49)HEX to RGB Converter →

HEX to HSL

Convert #212631 to HSL:

hsl(221, 20%, 16%)RGB to HSL Converter →

HEX to CMYK

Convert #212631 to CMYK:

cmyk(33%, 22%, 0%, 81%)Color Converter →

Color Meaning and Usage

A dramatic blue tone, #212631 has RGB (33, 38, 49) and HSL (221°, 20%, 16%). Known for evoking sophistication and elegance, this very dark shade is well suited for marketing pages and hero sections. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #212631 is #312C21, creating high-contrast pairings. For softer combinations, try analogous colors like #212E31.

Use #212631 in CSS: color: #212631 or background-color: #212631. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #212631

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

Contrast Ratio: 1.39:1
WCAG AA: Fail
WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #212631?

#212631 is a dramatic blue color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #212631?

#212631 in RGB is (33, 38, 49) - 33 red, 38 green, and 49 blue.

How to use #212631 in CSS?

Use #212631 directly in your CSS properties like color or background-color.

What colors go well with #212631?

#312C21 (complementary), #212E31 (analogous), and #020203 (lighter shade) work well with #212631.