#423F4D

#423F4D

Color Values

HEX

#423F4D

RGB

66, 63, 77

HSL

252.9, 10.0%, 27.5%

HSV

252.9, 18.2%, 30.2%

CMYK

14.3%, 18.2%, 0.0%, 69.8%

OKLCH

0.3761 0.0239 295.0

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#423F4D

#4A4D3F

Analogous

#3F434D

#493F4D

#423F4D

Triadic

#423F4D

#4D423F

#3F4D42

Split Complementary

#423F4D

#4D493F

#434D3F

Tetradic

#423F4D

#4D3F43

#4A4D3F

#3F4D49

Color Blindness Simulation

Original

#423F4D

Protanopia

#41414A

Deuteranopia

#414149

Tritanopia

#424746

Achromatopsia

#414141

CSS Usage

background-color: #423F4D;
color: #423F4D;
border-color: #423F4D;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F7F7F8
100
#ECECEF
200
#D9D8DF
300
#BEBCC8
400
#9B97AA
500
#78738C
600
#605C70
700
#4D495A
800
#3C3946
900
#2E2C35
950
#1D1C21

Contrast Checker

Text on white

10.24:1

AA Pass AAA Pass

Text on black

2.05:1

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