#666B70 Color Information

Hex color code: #666B70

A subtle blue shade, #666B70 appears as (102, 107, 112) in RGB and (210°, 5%, 42%) in HSL. It is popular in mobile app design.

Try:

Color NameGray

HEX

#666B70

RGB

102, 107, 112

HSL

210°, 5%, 42%

CMYK

9%, 4%, 0%, 56%

Shades

CSS Usage

color: #666B70;
background-color: #666B70;
border-color: #666B70;
box-shadow: 0 0 10px #666B70;
border: 2px solid #666B70;

Tailwind Usage

bg-[#666B70]
text-[#666B70]
border-[#666B70]
shadow-[0_0_10px_666B70]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #666B70, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #666B70; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #666B70; 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 #666B70; background-color: #666B7015; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #666B7020; border-left: 4px solid #666B70; }

Link / Accent

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

a { color: #666B70; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #666B70 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

102, 107, 112

Red: 102 / Green: 107 / Blue: 112

HSL

210°, 5%, 42%

Hue: 210° / Saturation: 5% / Lightness: 42%

CMYK

9%, 4%, 0%, 56%

Cyan: 9% / Magenta: 4% / Yellow: 0% / Key: 56%

What color is #666B70?

#666B70 is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

706B66

Color Palette

HEX to RGB

Convert #666B70 to RGB:

rgb(102, 107, 112)HEX to RGB Converter →

HEX to HSL

Convert #666B70 to HSL:

hsl(210, 5%, 42%)RGB to HSL Converter →

HEX to CMYK

Convert #666B70 to CMYK:

cmyk(9%, 4%, 0%, 56%)Color Converter →

Color Meaning and Usage

A neutral blue tone, #666B70 has RGB (102, 107, 112) and HSL (210°, 5%, 42%). Known for evoking balance and subtlety, this desaturated neutral is frequently chosen for fintech and productivity apps. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #666B70 is #706B66, creating high-contrast pairings. For softer combinations, try analogous colors like #667070.

Use #666B70 in CSS: color: #666B70 or background-color: #666B70. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #666B70

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

Contrast Ratio: 3.90:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #666B70?

#666B70 is a neutral blue color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #666B70?

#666B70 in RGB is (102, 107, 112) - 102 red, 107 green, and 112 blue.

How to use #666B70 in CSS?

Use #666B70 directly in your CSS properties like color or background-color.

What colors go well with #666B70?

#706B66 (complementary), #667070 (analogous), and #414548 (lighter shade) work well with #666B70.