#666E7F Color Information

Hex color code: #666E7F

The hex color #666E7F is a subtle blue with RGB values of (102, 110, 127) and HSL of (221°, 11%, 45%). It is often used for branding and logos.

Try:

Color NameSlate Gray

HEX

#666E7F

RGB

102, 110, 127

HSL

221°, 11%, 45%

CMYK

20%, 13%, 0%, 50%

Shades

CSS Usage

color: #666E7F;
background-color: #666E7F;
border-color: #666E7F;
box-shadow: 0 0 10px #666E7F;
border: 2px solid #666E7F;

Tailwind Usage

bg-[#666E7F]
text-[#666E7F]
border-[#666E7F]
shadow-[0_0_10px_666E7F]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #666E7F, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #666E7F; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #666E7F; 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 #666E7F; background-color: #666E7F15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #666E7F20; border-left: 4px solid #666E7F; }

Link / Accent

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

a { color: #666E7F; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #666E7F in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

102, 110, 127

Red: 102 / Green: 110 / Blue: 127

HSL

221°, 11%, 45%

Hue: 221° / Saturation: 11% / Lightness: 45%

CMYK

20%, 13%, 0%, 50%

Cyan: 20% / Magenta: 13% / Yellow: 0% / Key: 50%

What color is #666E7F?

#666E7F is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

7F7766

Color Palette

HEX to RGB

Convert #666E7F to RGB:

rgb(102, 110, 127)HEX to RGB Converter →

HEX to HSL

Convert #666E7F to HSL:

hsl(221, 11%, 45%)RGB to HSL Converter →

HEX to CMYK

Convert #666E7F to CMYK:

cmyk(20%, 13%, 0%, 50%)Color Converter →

Color Meaning and Usage

#666E7F is a subtle blue color with RGB values of 102, 110, 127 and HSL of 221°, 11%, 45%. This desaturated neutral evokes balance and subtlety, making it suitable for commonly used in modern UI design. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #666E7F is #7F7766, creating high-contrast pairings. For softer combinations, try analogous colors like #667B7F.

Use #666E7F in CSS: color: #666E7F or background-color: #666E7F. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #666E7F

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

Contrast Ratio: 4.10:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #666E7F?

#666E7F is a subtle blue color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #666E7F?

#666E7F in RGB is (102, 110, 127) - 102 red, 110 green, and 127 blue.

How to use #666E7F in CSS?

Use #666E7F directly in your CSS properties like color or background-color.

What colors go well with #666E7F?

#7F7766 (complementary), #667B7F (analogous), and #444955 (lighter shade) work well with #666E7F.