#666C7A Color Information

Hex color code: #666C7A

A subtle blue shade, #666C7A appears as (102, 108, 122) in RGB and (222°, 9%, 44%) in HSL. It is popular in mobile app design.

Try:

Color NameSlate Gray

HEX

#666C7A

RGB

102, 108, 122

HSL

222°, 9%, 44%

CMYK

16%, 11%, 0%, 52%

Shades

CSS Usage

color: #666C7A;
background-color: #666C7A;
border-color: #666C7A;
box-shadow: 0 0 10px #666C7A;
border: 2px solid #666C7A;

Tailwind Usage

bg-[#666C7A]
text-[#666C7A]
border-[#666C7A]
shadow-[0_0_10px_666C7A]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #666C7A, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #666C7A; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #666C7A; 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 #666C7A; background-color: #666C7A15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #666C7A20; border-left: 4px solid #666C7A; }

Link / Accent

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

a { color: #666C7A; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #666C7A in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

102, 108, 122

Red: 102 / Green: 108 / Blue: 122

HSL

222°, 9%, 44%

Hue: 222° / Saturation: 9% / Lightness: 44%

CMYK

16%, 11%, 0%, 52%

Cyan: 16% / Magenta: 11% / Yellow: 0% / Key: 52%

What color is #666C7A?

#666C7A is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

7A7466

Color Palette

HEX to RGB

Convert #666C7A to RGB:

rgb(102, 108, 122)HEX to RGB Converter →

HEX to HSL

Convert #666C7A to HSL:

hsl(222, 9%, 44%)RGB to HSL Converter →

HEX to CMYK

Convert #666C7A to CMYK:

cmyk(16%, 11%, 0%, 52%)Color Converter →

Color Meaning and Usage

A neutral blue tone, #666C7A has RGB (102, 108, 122) and HSL (222°, 9%, 44%). Known for evoking balance and subtlety, this desaturated neutral is often used for branding and logos. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #666C7A is #7A7466, creating high-contrast pairings. For softer combinations, try analogous colors like #66767A.

Use #666C7A in CSS: color: #666C7A or background-color: #666C7A. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #666C7A

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

Contrast Ratio: 3.99:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #666C7A?

#666C7A is a neutral blue color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #666C7A?

#666C7A in RGB is (102, 108, 122) - 102 red, 108 green, and 122 blue.

How to use #666C7A in CSS?

Use #666C7A directly in your CSS properties like color or background-color.

What colors go well with #666C7A?

#7A7466 (complementary), #66767A (analogous), and #434751 (lighter shade) work well with #666C7A.