#4039BB Color Information

Hex color code: #4039BB

#4039BB is a cool blue color. In RGB it is (64, 57, 187), and in HSL it is (243°, 53%, 48%). It is commonly used in modern UI design.

Try:

Color NameDark Slate Blue

HEX

#4039BB

RGB

64, 57, 187

HSL

243°, 53%, 48%

CMYK

66%, 70%, 0%, 27%

Shades

CSS Usage

color: #4039BB;
background-color: #4039BB;
border-color: #4039BB;
box-shadow: 0 0 10px #4039BB;
border: 2px solid #4039BB;

Tailwind Usage

bg-[#4039BB]
text-[#4039BB]
border-[#4039BB]
shadow-[0_0_10px_4039BB]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #4039BB, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #4039BB; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #4039BB; 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 #4039BB; background-color: #4039BB15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #4039BB20; border-left: 4px solid #4039BB; }

Link / Accent

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

a { color: #4039BB; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #4039BB in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

64, 57, 187

Red: 64 / Green: 57 / Blue: 187

HSL

243°, 53%, 48%

Hue: 243° / Saturation: 53% / Lightness: 48%

CMYK

66%, 70%, 0%, 27%

Cyan: 66% / Magenta: 70% / Yellow: 0% / Key: 27%

What color is #4039BB?

#4039BB is a blue-purple hue associated with creativity and luxury.

Color Shades

Complementary Colors

B5BB3A

Color Palette

HEX to RGB

Convert #4039BB to RGB:

rgb(64, 57, 187)HEX to RGB Converter →

HEX to HSL

Convert #4039BB to HSL:

hsl(243, 53%, 48%)RGB to HSL Converter →

HEX to CMYK

Convert #4039BB to CMYK:

cmyk(66%, 70%, 0%, 27%)Color Converter →

Color Meaning and Usage

A peaceful blue tone, #4039BB has RGB (64, 57, 187) and HSL (243°, 53%, 48%). Known for evoking creativity and luxury, this blue-purple hue is popular for illustrations and friendly visual themes. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #4039BB is #B5BB3A, creating high-contrast pairings. For softer combinations, try analogous colors like #3A74BB.

Use #4039BB in CSS: color: #4039BB or background-color: #4039BB. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #4039BB

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

Contrast Ratio: 2.52:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #4039BB?

#4039BB is a peaceful blue color - a blue-purple hue that evokes creativity and luxury.

What is the RGB value of #4039BB?

#4039BB in RGB is (64, 57, 187) - 64 red, 57 green, and 187 blue.

How to use #4039BB in CSS?

Use #4039BB directly in your CSS properties like color or background-color.

What colors go well with #4039BB?

#B5BB3A (complementary), #3A74BB (analogous), and #2C2881 (lighter shade) work well with #4039BB.