#3F4138

#3F4138

Color Values

HEX

#3F4138

RGB

63, 65, 56

HSL

73.3, 7.4%, 23.7%

HSV

73.3, 13.8%, 25.5%

CMYK

3.1%, 0.0%, 13.8%, 74.5%

OKLCH

0.3704 0.0152 117.3

Properties

Cool Dark Nearest: RAL 6015 Black Olive

Color Harmonies

Complementary

#3F4138

#3A3841

Analogous

#413E38

#3A4138

#3F4138

Triadic

#3F4138

#383F41

#41383F

Split Complementary

#3F4138

#383A41

#3E3841

Tetradic

#3F4138

#38413E

#3A3841

#41383A

Color Blindness Simulation

Original

#3F4138

Protanopia

#40403A

Deuteranopia

#40403B

Tritanopia

#3F3C3C

Achromatopsia

#404040

CSS Usage

background-color: #3F4138;
color: #3F4138;
border-color: #3F4138;
Nearest Tailwind: Stone 700 #44403C

Tailwind Shades

50
#F8F8F7
100
#EEEEEC
200
#DDDED9
300
#C4C6BD
400
#A5A89A
500
#858976
600
#6A6E5E
700
#55584C
800
#42443B
900
#32342D
950
#20211D

Contrast Checker

Text on white

10.37:1

AA Pass AAA Pass

Text on black

2.02:1

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