#423F63

#423F63

Color Values

HEX

#423F63

RGB

66, 63, 99

HSL

245.0, 22.2%, 31.8%

HSV

245.0, 36.4%, 38.8%

CMYK

33.3%, 36.4%, 0.0%, 61.2%

OKLCH

0.387 0.0605 287.0

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#423F63

#60633F

Analogous

#3F4E63

#543F63

#423F63

Triadic

#423F63

#63423F

#3F6342

Split Complementary

#423F63

#63543F

#4E633F

Tetradic

#423F63

#633F4E

#60633F

#3F6354

Color Blindness Simulation

Original

#423F63

Protanopia

#41415A

Deuteranopia

#414158

Tritanopia

#425352

Achromatopsia

#424242

CSS Usage

background-color: #423F63;
color: #423F63;
border-color: #423F63;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F9
100
#EAEAF1
200
#D5D3E3
300
#B6B4CF
400
#8F8CB6
500
#68639C
600
#534F7D
700
#433F64
800
#34324E
900
#28273A
950
#1A1825

Contrast Checker

Text on white

9.89:1

AA Pass AAA Pass

Text on black

2.12:1

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