#424340

#424340

Color Values

HEX

#424340

RGB

66, 67, 64

HSL

80.0, 2.3%, 25.7%

HSV

80.0, 4.5%, 26.3%

CMYK

1.5%, 0.0%, 4.5%, 73.7%

OKLCH

0.3809 0.0052 121.7

Properties

Cool Dark Nearest: RAL 6015 Black Olive

Color Harmonies

Complementary

#424340

#414043

Analogous

#434340

#414340

#424340

Triadic

#424340

#404243

#434042

Split Complementary

#424340

#404143

#434043

Tetradic

#424340

#404343

#414043

#434041

Color Blindness Simulation

Original

#424340

Protanopia

#424241

Deuteranopia

#424241

Tritanopia

#424141

Achromatopsia

#434343

CSS Usage

background-color: #424340;
color: #424340;
border-color: #424340;
Nearest Tailwind: Neutral 700 #404040

Tailwind Shades

50
#F7F7F7
100
#EDEDED
200
#DCDCDA
300
#C2C3C0
400
#A1A39E
500
#80827D
600
#676864
700
#525350
800
#40413E
900
#31312F
950
#1F1F1E

Contrast Checker

Text on white

9.96:1

AA Pass AAA Pass

Text on black

2.11:1

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