#3F3F43

#3F3F43

Color Values

HEX

#3F3F43

RGB

63, 63, 67

HSL

240.0, 3.1%, 25.5%

HSV

240.0, 6.0%, 26.3%

CMYK

6.0%, 6.0%, 0.0%, 73.7%

OKLCH

0.3692 0.0068 286.1

Properties

Cool Dark Nearest: RAL 8019 Grey Brown

Color Harmonies

Complementary

#3F3F43

#43433F

Analogous

#3F4143

#413F43

#3F3F43

Triadic

#3F3F43

#433F3F

#3F433F

Split Complementary

#3F3F43

#43413F

#41433F

Tetradic

#3F3F43

#433F41

#43433F

#3F4341

Color Blindness Simulation

Original

#3F3F43

Protanopia

#3F3F42

Deuteranopia

#3F3F42

Tritanopia

#3F4141

Achromatopsia

#3F3F3F

CSS Usage

background-color: #3F3F43;
color: #3F3F43;
border-color: #3F3F43;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F7F7F8
100
#EDEDEE
200
#DADADC
300
#C0C0C4
400
#9E9EA4
500
#7C7C83
600
#636369
700
#4F4F54
800
#3E3E42
900
#2F2F32
950
#1E1E1F

Contrast Checker

Text on white

10.48:1

AA Pass AAA Pass

Text on black

2.0:1

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