#666C80

#666C80

Color Values

HEX

#666C80

RGB

102, 108, 128

HSL

226.2, 11.3%, 45.1%

HSV

226.2, 20.3%, 50.2%

CMYK

20.3%, 15.6%, 0.0%, 49.8%

OKLCH

0.5334 0.0322 272.1

Properties

Cool Dark Nearest: RAL 4012 Pearl Blackberry

Color Harmonies

Complementary

#666C80

#807A66

Analogous

#667980

#6D6680

#666C80

Triadic

#666C80

#80666C

#6C8066

Split Complementary

#666C80

#806D66

#798066

Tetradic

#666C80

#806679

#807A66

#66806D

Color Blindness Simulation

Original

#666C80

Protanopia

#69697B

Deuteranopia

#68687A

Tritanopia

#667776

Achromatopsia

#6C6C6C

CSS Usage

background-color: #666C80;
color: #666C80;
border-color: #666C80;
Nearest Tailwind: Gray 500 #6B7280

Tailwind Shades

50
#F7F7F8
100
#EBECEF
200
#D7D9DF
300
#BBBEC9
400
#969BAB
500
#71788E
600
#5A6072
700
#484D5B
800
#393C47
900
#2C2E35
950
#1B1D22

Contrast Checker

Text on white

5.22:1

AA Pass AAA Fail

Text on black

4.02:1

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