#423644

#423644

Color Values

HEX

#423644

RGB

66, 54, 68

HSL

291.4, 11.5%, 23.9%

HSV

291.4, 20.6%, 26.7%

CMYK

2.9%, 20.6%, 0.0%, 73.3%

OKLCH

0.3512 0.0288 321.5

Properties

Cool Dark Nearest: RAL 8019 Grey Brown

Color Harmonies

Complementary

#423644

#384436

Analogous

#3B3644

#44363F

#423644

Triadic

#423644

#444236

#364442

Split Complementary

#423644

#3F4436

#36443B

Tetradic

#423644

#443B36

#384436

#363F44

Color Blindness Simulation

Original

#423644

Protanopia

#3D3D41

Deuteranopia

#3E3E40

Tritanopia

#413E3D

Achromatopsia

#3A3A3A

CSS Usage

background-color: #423644;
color: #423644;
border-color: #423644;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F8F7F8
100
#EEEBEF
200
#DED7DF
300
#C7BBC9
400
#A896AC
500
#8A718E
600
#6E5A72
700
#58485B
800
#453847
900
#342B35
950
#211B22

Contrast Checker

Text on white

11.4:1

AA Pass AAA Pass

Text on black

1.84:1

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