#42574C

#42574C

Color Values

HEX

#42574C

RGB

66, 87, 76

HSL

148.6, 13.7%, 30.0%

HSV

148.6, 24.1%, 34.1%

CMYK

24.1%, 0.0%, 12.6%, 65.9%

OKLCH

0.4357 0.0315 161.9

Properties

Cool Dark Nearest: RAL 7009 Green Grey

Color Harmonies

Complementary

#42574C

#57424D

Analogous

#435742

#425756

#42574C

Triadic

#42574C

#4C4257

#574C42

Split Complementary

#42574C

#564257

#574243

Tetradic

#42574C

#424357

#57424D

#575642

Color Blindness Simulation

Original

#42574C

Protanopia

#4B4B4F

Deuteranopia

#4A484F

Tritanopia

#435151

Achromatopsia

#525252

CSS Usage

background-color: #42574C;
color: #42574C;
border-color: #42574C;
Nearest Tailwind: Stone 600 #57534E

Tailwind Shades

50
#F6F8F7
100
#EBEFED
200
#D6E0DB
300
#B9CAC1
400
#94AEA0
500
#6E917F
600
#587465
700
#465D51
800
#37483F
900
#2A3630
950
#1B221E

Contrast Checker

Text on white

7.78:1

AA Pass AAA Pass

Text on black

2.7:1

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