#666B6F

#666B6F

Color Values

HEX

#666B6F

RGB

102, 107, 111

HSL

206.7, 4.2%, 41.8%

HSV

206.7, 8.1%, 43.5%

CMYK

8.1%, 3.6%, 0.0%, 56.5%

OKLCH

0.5248 0.0088 241.8

Properties

Cool Dark Nearest: dimgrey

Color Harmonies

Complementary

#666B6F

#6F6A66

Analogous

#666F6F

#66676F

#666B6F

Triadic

#666B6F

#6F666B

#6B6F66

Split Complementary

#666B6F

#6F6667

#6F6F66

Tetradic

#666B6F

#6F666F

#6F6A66

#676F66

Color Blindness Simulation

Original

#666B6F

Protanopia

#68686E

Deuteranopia

#68686E

Tritanopia

#666D6D

Achromatopsia

#6A6A6A

CSS Usage

background-color: #666B6F;
color: #666B6F;
border-color: #666B6F;
Nearest Tailwind: Zinc 500 #71717A

Tailwind Shades

50
#F7F7F8
100
#EDEDEE
200
#DADBDD
300
#BFC2C4
400
#9DA1A5
500
#7A8085
600
#62666A
700
#4E5255
800
#3D4042
900
#2F3132
950
#1D1F20

Contrast Checker

Text on white

5.39:1

AA Pass AAA Fail

Text on black

3.9:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026