#424F5B

#424F5B

Color Values

HEX

#424F5B

RGB

66, 79, 91

HSL

208.8, 15.9%, 30.8%

HSV

208.8, 27.5%, 35.7%

CMYK

27.5%, 13.2%, 0.0%, 64.3%

OKLCH

0.421 0.026 246.3

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#424F5B

#5B4E42

Analogous

#425B5B

#42435B

#424F5B

Triadic

#424F5B

#5B424F

#4F5B42

Split Complementary

#424F5B

#5B4243

#5B5B42

Tetradic

#424F5B

#5B425B

#5B4E42

#435B42

Color Blindness Simulation

Original

#424F5B

Protanopia

#484858

Deuteranopia

#474657

Tritanopia

#435655

Achromatopsia

#4D4D4D

CSS Usage

background-color: #424F5B;
color: #424F5B;
border-color: #424F5B;
Nearest Tailwind: Gray 600 #4B5563

Tailwind Shades

50
#F6F7F8
100
#EBEDF0
200
#D6DCE1
300
#B8C2CC
400
#92A1B0
500
#6B8094
600
#566776
700
#45525F
800
#36404A
900
#2A3137
950
#1A1F23

Contrast Checker

Text on white

8.4:1

AA Pass AAA Pass

Text on black

2.5:1

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