#666D77 Color Information

Hex color code: #666D77

The hex color #666D77 is a balanced blue with RGB values of (102, 109, 119) and HSL of (215°, 8%, 43%). It is often used for branding and logos.

Try:

Color NameSlate Gray

HEX

#666D77

RGB

102, 109, 119

HSL

215°, 8%, 43%

CMYK

14%, 8%, 0%, 53%

Shades

CSS Usage

color: #666D77;
background-color: #666D77;
border-color: #666D77;
box-shadow: 0 0 10px #666D77;
border: 2px solid #666D77;

Tailwind Usage

bg-[#666D77]
text-[#666D77]
border-[#666D77]
shadow-[0_0_10px_666D77]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #666D77, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #666D77; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #666D77; 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 #666D77; background-color: #666D7715; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #666D7720; border-left: 4px solid #666D77; }

Link / Accent

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

a { color: #666D77; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #666D77 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

102, 109, 119

Red: 102 / Green: 109 / Blue: 119

HSL

215°, 8%, 43%

Hue: 215° / Saturation: 8% / Lightness: 43%

CMYK

14%, 8%, 0%, 53%

Cyan: 14% / Magenta: 8% / Yellow: 0% / Key: 53%

What color is #666D77?

#666D77 is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

766F65

Color Palette

HEX to RGB

Convert #666D77 to RGB:

rgb(102, 109, 119)HEX to RGB Converter →

HEX to HSL

Convert #666D77 to HSL:

hsl(215, 8%, 43%)RGB to HSL Converter →

HEX to CMYK

Convert #666D77 to CMYK:

cmyk(14%, 8%, 0%, 53%)Color Converter →

Color Meaning and Usage

#666D77 is a muted blue color with RGB values of 102, 109, 119 and HSL of 215°, 8%, 43%. This desaturated neutral evokes balance and subtlety, making it suitable for a solid option for clean and minimal interfaces. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #666D77 is #766F65, creating high-contrast pairings. For softer combinations, try analogous colors like #657576.

Use #666D77 in CSS: color: #666D77 or background-color: #666D77. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #666D77

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

Contrast Ratio: 4.02:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #666D77?

#666D77 is a muted blue color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #666D77?

#666D77 in RGB is (102, 109, 119) - 102 red, 109 green, and 119 blue.

How to use #666D77 in CSS?

Use #666D77 directly in your CSS properties like color or background-color.

What colors go well with #666D77?

#766F65 (complementary), #657576 (analogous), and #42464D (lighter shade) work well with #666D77.