#424751

#424751

Color Values

HEX

#424751

RGB

66, 71, 81

HSL

220.0, 10.2%, 28.8%

HSV

220.0, 18.5%, 31.8%

CMYK

18.5%, 12.3%, 0.0%, 68.2%

OKLCH

0.3971 0.0181 264.3

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#424751

#514C42

Analogous

#424E51

#444251

#424751

Triadic

#424751

#514247

#475142

Split Complementary

#424751

#514442

#4E5142

Tetradic

#424751

#51424E

#514C42

#425144

Color Blindness Simulation

Original

#424751

Protanopia

#44444F

Deuteranopia

#44444E

Tritanopia

#424D4C

Achromatopsia

#474747

CSS Usage

background-color: #424751;
color: #424751;
border-color: #424751;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F7F7F8
100
#ECEDEF
200
#D8DADF
300
#BCC0C8
400
#979DAA
500
#727B8D
600
#5C6370
700
#494F5A
800
#393E46
900
#2C2F35
950
#1C1E21

Contrast Checker

Text on white

9.33:1

AA Pass AAA Pass

Text on black

2.25:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026