#121C21 Color Information

Hex color code: #121C21

The hex color #121C21 is a rich blue with RGB values of (18, 28, 33) and HSL of (200°, 29%, 10%). It is often used for branding and logos.

Try:

Color NameBlack

HEX

#121C21

RGB

18, 28, 33

HSL

200°, 29%, 10%

CMYK

45%, 15%, 0%, 87%

Shades

CSS Usage

color: #121C21;
background-color: #121C21;
border-color: #121C21;
box-shadow: 0 0 10px #121C21;
border: 2px solid #121C21;

Tailwind Usage

bg-[#121C21]
text-[#121C21]
border-[#121C21]
shadow-[0_0_10px_121C21]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #121C21, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #121C21; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #121C21; 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 #121C21; background-color: #121C2115; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #121C2120; border-left: 4px solid #121C21; }

Link / Accent

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

a { color: #121C21; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #121C21 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

18, 28, 33

Red: 18 / Green: 28 / Blue: 33

HSL

200°, 29%, 10%

Hue: 200° / Saturation: 29% / Lightness: 10%

CMYK

45%, 15%, 0%, 87%

Cyan: 45% / Magenta: 15% / Yellow: 0% / Key: 87%

What color is #121C21?

#121C21 is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

211712

Color Palette

HEX to RGB

Convert #121C21 to RGB:

rgb(18, 28, 33)HEX to RGB Converter →

HEX to HSL

Convert #121C21 to HSL:

hsl(200, 29%, 10%)RGB to HSL Converter →

HEX to CMYK

Convert #121C21 to CMYK:

cmyk(45%, 15%, 0%, 87%)Color Converter →

Color Meaning and Usage

#121C21 is a rich blue color with RGB values of 18, 28, 33 and HSL of 200°, 29%, 10%. 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 #121C21 is #211712, creating high-contrast pairings. For softer combinations, try analogous colors like #12211E.

Use #121C21 in CSS: color: #121C21 or background-color: #121C21. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #121C21

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

Contrast Ratio: 1.21:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #121C21?

#121C21 is a rich blue color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #121C21?

#121C21 in RGB is (18, 28, 33) - 18 red, 28 green, and 33 blue.

How to use #121C21 in CSS?

Use #121C21 directly in your CSS properties like color or background-color.

What colors go well with #121C21?

#211712 (complementary), #12211E (analogous), and #000000 (lighter shade) work well with #121C21.