#423C5F

#423C5F

Color Values

HEX

#423C5F

RGB

66, 60, 95

HSL

250.3, 22.6%, 30.4%

HSV

250.3, 36.8%, 37.3%

CMYK

30.5%, 36.8%, 0.0%, 62.7%

OKLCH

0.3781 0.0592 291.2

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#423C5F

#595F3C

Analogous

#3C485F

#543C5F

#423C5F

Triadic

#423C5F

#5F423C

#3C5F42

Split Complementary

#423C5F

#5F543C

#485F3C

Tetradic

#423C5F

#5F3C48

#595F3C

#3C5F54

Color Blindness Simulation

Original

#423C5F

Protanopia

#3F3F57

Deuteranopia

#404054

Tritanopia

#42504E

Achromatopsia

#404040

CSS Usage

background-color: #423C5F;
color: #423C5F;
border-color: #423C5F;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F9
100
#EBEAF1
200
#D6D3E3
300
#B9B4D0
400
#938BB6
500
#6D639C
600
#574F7D
700
#453F64
800
#36314E
900
#2A273A
950
#1B1825

Contrast Checker

Text on white

10.28:1

AA Pass AAA Pass

Text on black

2.04:1

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