#423FD9 Color Information

Hex color code: #423FD9

A serene blue shade, #423FD9 appears as (66, 63, 217) in RGB and (241°, 67%, 55%) in HSL. It is often used for branding and logos.

Try:

Color NameRoyal Blue

HEX

#423FD9

RGB

66, 63, 217

HSL

241°, 67%, 55%

CMYK

70%, 71%, 0%, 15%

Shades

CSS Usage

color: #423FD9;
background-color: #423FD9;
border-color: #423FD9;
box-shadow: 0 0 10px #423FD9;
border: 2px solid #423FD9;

Tailwind Usage

bg-[#423FD9]
text-[#423FD9]
border-[#423FD9]
shadow-[0_0_10px_423FD9]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #423FD9, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #423FD9; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #423FD9; 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 #423FD9; background-color: #423FD915; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #423FD920; border-left: 4px solid #423FD9; }

Link / Accent

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

a { color: #423FD9; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #423FD9 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

66, 63, 217

Red: 66 / Green: 63 / Blue: 217

HSL

241°, 67%, 55%

Hue: 241° / Saturation: 67% / Lightness: 55%

CMYK

70%, 71%, 0%, 15%

Cyan: 70% / Magenta: 71% / Yellow: 0% / Key: 15%

What color is #423FD9?

#423FD9 is a blue-purple hue associated with creativity and luxury.

Color Shades

Complementary Colors

D7D93F

Color Palette

HEX to RGB

Convert #423FD9 to RGB:

rgb(66, 63, 217)HEX to RGB Converter →

HEX to HSL

Convert #423FD9 to HSL:

hsl(241, 67%, 55%)RGB to HSL Converter →

HEX to CMYK

Convert #423FD9 to CMYK:

cmyk(70%, 71%, 0%, 15%)Color Converter →

Color Meaning and Usage

A cool blue tone, #423FD9 has RGB (66, 63, 217) and HSL (241°, 67%, 55%). Known for evoking creativity and luxury, this blue-purple hue is widely used in graphic design. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #423FD9 is #D7D93F, creating high-contrast pairings. For softer combinations, try analogous colors like #3F8AD9.

Use #423FD9 in CSS: color: #423FD9 or background-color: #423FD9. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #423FD9

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

Contrast Ratio: 2.94:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #423FD9?

#423FD9 is a cool blue color - a blue-purple hue that evokes creativity and luxury.

What is the RGB value of #423FD9?

#423FD9 in RGB is (66, 63, 217) - 66 red, 63 green, and 217 blue.

How to use #423FD9 in CSS?

Use #423FD9 directly in your CSS properties like color or background-color.

What colors go well with #423FD9?

#D7D93F (complementary), #3F8AD9 (analogous), and #2422AA (lighter shade) work well with #423FD9.