#121CD3 Color Information

Hex color code: #121CD3

The hex color #121CD3 is a striking blue with RGB values of (18, 28, 211) and HSL of (237°, 84%, 45%). It is popular in mobile app design.

Try:

Color NameBlue

HEX

#121CD3

RGB

18, 28, 211

HSL

237°, 84%, 45%

CMYK

91%, 87%, 0%, 17%

Shades

CSS Usage

color: #121CD3;
background-color: #121CD3;
border-color: #121CD3;
box-shadow: 0 0 10px #121CD3;
border: 2px solid #121CD3;

Tailwind Usage

bg-[#121CD3]
text-[#121CD3]
border-[#121CD3]
shadow-[0_0_10px_121CD3]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #121CD3, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #121CD3; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #121CD3; 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 #121CD3; background-color: #121CD315; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #121CD320; border-left: 4px solid #121CD3; }

Link / Accent

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

a { color: #121CD3; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #121CD3 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

18, 28, 211

Red: 18 / Green: 28 / Blue: 211

HSL

237°, 84%, 45%

Hue: 237° / Saturation: 84% / Lightness: 45%

CMYK

91%, 87%, 0%, 17%

Cyan: 91% / Magenta: 87% / Yellow: 0% / Key: 17%

What color is #121CD3?

#121CD3 is a highly saturated hue associated with energy and excitement.

Color Shades

Complementary Colors

D3CA12

Color Palette

HEX to RGB

Convert #121CD3 to RGB:

rgb(18, 28, 211)HEX to RGB Converter →

HEX to HSL

Convert #121CD3 to HSL:

hsl(237, 84%, 45%)RGB to HSL Converter →

HEX to CMYK

Convert #121CD3 to CMYK:

cmyk(91%, 87%, 0%, 17%)Color Converter →

Color Meaning and Usage

#121CD3 is a bold blue color with RGB values of 18, 28, 211 and HSL of 237°, 84%, 45%. This highly saturated hue evokes energy and excitement, making it suitable for popular for illustrations and friendly visual themes. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #121CD3 is #D3CA12, creating high-contrast pairings. For softer combinations, try analogous colors like #127CD3.

Use #121CD3 in CSS: color: #121CD3 or background-color: #121CD3. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #121CD3

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

Contrast Ratio: 2.13:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #121CD3?

#121CD3 is a bold blue color - a highly saturated hue that evokes energy and excitement.

What is the RGB value of #121CD3?

#121CD3 in RGB is (18, 28, 211) - 18 red, 28 green, and 211 blue.

How to use #121CD3 in CSS?

Use #121CD3 directly in your CSS properties like color or background-color.

What colors go well with #121CD3?

#D3CA12 (complementary), #127CD3 (analogous), and #0C138D (lighter shade) work well with #121CD3.