#3F3F42

#3F3F42

Color Values

HEX

#3F3F42

RGB

63, 63, 66

HSL

240.0, 2.3%, 25.3%

HSV

240.0, 4.5%, 25.9%

CMYK

4.5%, 4.5%, 0.0%, 74.1%

OKLCH

0.3688 0.0051 286.1

Properties

Cool Dark Nearest: NCS S 8000-N Very Dark Grey

Color Harmonies

Complementary

#3F3F42

#42423F

Analogous

#3F4142

#413F42

#3F3F42

Triadic

#3F3F42

#423F3F

#3F423F

Split Complementary

#3F3F42

#42413F

#41423F

Tetradic

#3F3F42

#423F41

#42423F

#3F4241

Color Blindness Simulation

Original

#3F3F42

Protanopia

#3F3F41

Deuteranopia

#3F3F41

Tritanopia

#3F4141

Achromatopsia

#3F3F3F

CSS Usage

background-color: #3F3F42;
color: #3F3F42;
border-color: #3F3F42;
Nearest Tailwind: Neutral 700 #404040

Tailwind Shades

50
#F7F7F7
100
#EDEDED
200
#DADADC
300
#C0C0C3
400
#9E9EA3
500
#7D7D82
600
#646468
700
#505053
800
#3E3E41
900
#2F2F31
950
#1E1E1F

Contrast Checker

Text on white

10.49:1

AA Pass AAA Pass

Text on black

2.0:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026