#3F4950

#3F4950

Color Values

HEX

#3F4950

RGB

63, 73, 80

HSL

204.7, 11.9%, 28.0%

HSV

204.7, 21.2%, 31.4%

CMYK

21.2%, 8.8%, 0.0%, 68.6%

OKLCH

0.3991 0.0176 238.5

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#3F4950

#50463F

Analogous

#3F504E

#3F4050

#3F4950

Triadic

#3F4950

#503F49

#49503F

Split Complementary

#3F4950

#503F40

#504E3F

Tetradic

#3F4950

#4E3F50

#50463F

#40503F

Color Blindness Simulation

Original

#3F4950

Protanopia

#43434E

Deuteranopia

#43424E

Tritanopia

#3F4D4D

Achromatopsia

#474747

CSS Usage

background-color: #3F4950;
color: #3F4950;
border-color: #3F4950;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F7F7F8
100
#EBEDEF
200
#D7DCE0
300
#BBC3C9
400
#95A3AC
500
#70828F
600
#5A6872
700
#48535B
800
#384147
900
#2B3136
950
#1B1F22

Contrast Checker

Text on white

9.21:1

AA Pass AAA Pass

Text on black

2.28:1

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