#666BE5 Color Information

Hex color code: #666BE5

A vivid blue shade, #666BE5 appears as (102, 107, 229) in RGB and (238°, 71%, 65%) in HSL. It is commonly used in modern UI design.

Try:

Color NameMedium Slate Blue

HEX

#666BE5

RGB

102, 107, 229

HSL

238°, 71%, 65%

CMYK

55%, 53%, 0%, 10%

Shades

CSS Usage

color: #666BE5;
background-color: #666BE5;
border-color: #666BE5;
box-shadow: 0 0 10px #666BE5;
border: 2px solid #666BE5;

Tailwind Usage

bg-[#666BE5]
text-[#666BE5]
border-[#666BE5]
shadow-[0_0_10px_666BE5]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #666BE5, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #666BE5; color: #000000; }

Badge

New Feature

.badge { background-color: #666BE5; color: #000000; }

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 #666BE5; background-color: #666BE515; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #666BE520; border-left: 4px solid #666BE5; }

Link / Accent

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

a { color: #666BE5; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #666BE5 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

102, 107, 229

Red: 102 / Green: 107 / Blue: 229

HSL

238°, 71%, 65%

Hue: 238° / Saturation: 71% / Lightness: 65%

CMYK

55%, 53%, 0%, 10%

Cyan: 55% / Magenta: 53% / Yellow: 0% / Key: 10%

What color is #666BE5?

#666BE5 is a blue-purple hue associated with creativity and luxury.

Color Shades

Complementary Colors

E5E166

Color Palette

HEX to RGB

Convert #666BE5 to RGB:

rgb(102, 107, 229)HEX to RGB Converter →

HEX to HSL

Convert #666BE5 to HSL:

hsl(238, 71%, 65%)RGB to HSL Converter →

HEX to CMYK

Convert #666BE5 to CMYK:

cmyk(55%, 53%, 0%, 10%)Color Converter →

Color Meaning and Usage

A bold blue tone, #666BE5 has RGB (102, 107, 229) and HSL (238°, 71%, 65%). Known for evoking creativity and luxury, this blue-purple hue is frequently chosen for fintech and productivity apps. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #666BE5 is #E5E166, creating high-contrast pairings. For softer combinations, try analogous colors like #66AAE5.

Use #666BE5 in CSS: color: #666BE5 or background-color: #666BE5. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #666BE5

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

Contrast Ratio: 4.80:1

WCAG AA: Pass

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #666BE5?

#666BE5 is a bold blue color - a blue-purple hue that evokes creativity and luxury.

What is the RGB value of #666BE5?

#666BE5 in RGB is (102, 107, 229) - 102 red, 107 green, and 229 blue.

How to use #666BE5 in CSS?

Use #666BE5 directly in your CSS properties like color or background-color.

What colors go well with #666BE5?

#E5E166 (complementary), #66AAE5 (analogous), and #252BDA (lighter shade) work well with #666BE5.