#666C75 Color Information

Hex color code: #666C75

A subtle blue shade, #666C75 appears as (102, 108, 117) in RGB and (216°, 7%, 43%) in HSL. It is popular in mobile app design.

Try:

Color NameGray

HEX

#666C75

RGB

102, 108, 117

HSL

216°, 7%, 43%

CMYK

13%, 8%, 0%, 54%

Shades

CSS Usage

color: #666C75;
background-color: #666C75;
border-color: #666C75;
box-shadow: 0 0 10px #666C75;
border: 2px solid #666C75;

Tailwind Usage

bg-[#666C75]
text-[#666C75]
border-[#666C75]
shadow-[0_0_10px_666C75]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #666C75, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #666C75; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #666C75; 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 #666C75; background-color: #666C7515; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #666C7520; border-left: 4px solid #666C75; }

Link / Accent

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

a { color: #666C75; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #666C75 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

102, 108, 117

Red: 102 / Green: 108 / Blue: 117

HSL

216°, 7%, 43%

Hue: 216° / Saturation: 7% / Lightness: 43%

CMYK

13%, 8%, 0%, 54%

Cyan: 13% / Magenta: 8% / Yellow: 0% / Key: 54%

What color is #666C75?

#666C75 is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

756F66

Color Palette

HEX to RGB

Convert #666C75 to RGB:

rgb(102, 108, 117)HEX to RGB Converter →

HEX to HSL

Convert #666C75 to HSL:

hsl(216, 7%, 43%)RGB to HSL Converter →

HEX to CMYK

Convert #666C75 to CMYK:

cmyk(13%, 8%, 0%, 54%)Color Converter →

Color Meaning and Usage

A subtle blue tone, #666C75 has RGB (102, 108, 117) and HSL (216°, 7%, 43%). Known for evoking balance and subtlety, this desaturated neutral is typically applied in digital products. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #666C75 is #756F66, creating high-contrast pairings. For softer combinations, try analogous colors like #667475.

Use #666C75 in CSS: color: #666C75 or background-color: #666C75. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #666C75

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

Contrast Ratio: 3.97:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #666C75?

#666C75 is a subtle blue color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #666C75?

#666C75 in RGB is (102, 108, 117) - 102 red, 108 green, and 117 blue.

How to use #666C75 in CSS?

Use #666C75 directly in your CSS properties like color or background-color.

What colors go well with #666C75?

#756F66 (complementary), #667475 (analogous), and #42464C (lighter shade) work well with #666C75.