#666FE5 Color Information

Hex color code: #666FE5

The hex color #666FE5 is a striking blue with RGB values of (102, 111, 229) and HSL of (236°, 71%, 65%). It is often used for branding and logos.

Try:

Color NameMedium Slate Blue

HEX

#666FE5

RGB

102, 111, 229

HSL

236°, 71%, 65%

CMYK

55%, 52%, 0%, 10%

Shades

CSS Usage

color: #666FE5;
background-color: #666FE5;
border-color: #666FE5;
box-shadow: 0 0 10px #666FE5;
border: 2px solid #666FE5;

Tailwind Usage

bg-[#666FE5]
text-[#666FE5]
border-[#666FE5]
shadow-[0_0_10px_666FE5]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #666FE5, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #666FE5; color: #000000; }

Badge

New Feature

.badge { background-color: #666FE5; 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 #666FE5; background-color: #666FE515; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #666FE520; border-left: 4px solid #666FE5; }

Link / Accent

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

a { color: #666FE5; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #666FE5 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

102, 111, 229

Red: 102 / Green: 111 / Blue: 229

HSL

236°, 71%, 65%

Hue: 236° / Saturation: 71% / Lightness: 65%

CMYK

55%, 52%, 0%, 10%

Cyan: 55% / Magenta: 52% / Yellow: 0% / Key: 10%

What color is #666FE5?

#666FE5 is a blue-purple hue associated with creativity and luxury.

Color Shades

Complementary Colors

E5DD66

Color Palette

HEX to RGB

Convert #666FE5 to RGB:

rgb(102, 111, 229)HEX to RGB Converter →

HEX to HSL

Convert #666FE5 to HSL:

hsl(236, 71%, 65%)RGB to HSL Converter →

HEX to CMYK

Convert #666FE5 to CMYK:

cmyk(55%, 52%, 0%, 10%)Color Converter →

Color Meaning and Usage

#666FE5 is a eye-catching blue color with RGB values of 102, 111, 229 and HSL of 236°, 71%, 65%. This blue-purple hue evokes creativity and luxury, making it suitable for frequently chosen for fintech and productivity apps. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #666FE5 is #E5DD66, creating high-contrast pairings. For softer combinations, try analogous colors like #66AEE5.

Use #666FE5 in CSS: color: #666FE5 or background-color: #666FE5. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #666FE5

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

Contrast Ratio: 4.97:1

WCAG AA: Pass

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #666FE5?

#666FE5 is a eye-catching blue color - a blue-purple hue that evokes creativity and luxury.

What is the RGB value of #666FE5?

#666FE5 in RGB is (102, 111, 229) - 102 red, 111 green, and 229 blue.

How to use #666FE5 in CSS?

Use #666FE5 directly in your CSS properties like color or background-color.

What colors go well with #666FE5?

#E5DD66 (complementary), #66AEE5 (analogous), and #2531DA (lighter shade) work well with #666FE5.