#3F3F50

#3F3F50

Color Values

HEX

#3F3F50

RGB

63, 63, 80

HSL

240.0, 11.9%, 28.0%

HSV

240.0, 21.2%, 31.4%

CMYK

21.2%, 21.2%, 0.0%, 68.6%

OKLCH

0.3746 0.0289 284.9

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#3F3F50

#50503F

Analogous

#3F4750

#473F50

#3F3F50

Triadic

#3F3F50

#503F3F

#3F503F

Split Complementary

#3F3F50

#50473F

#47503F

Tetradic

#3F3F50

#503F47

#50503F

#3F5047

Color Blindness Simulation

Original

#3F3F50

Protanopia

#3F3F4C

Deuteranopia

#3F3F4B

Tritanopia

#3F4948

Achromatopsia

#404040

CSS Usage

background-color: #3F3F50;
color: #3F3F50;
border-color: #3F3F50;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F7F7F8
100
#EBEBEF
200
#D7D7E0
300
#BBBBC9
400
#9595AC
500
#70708F
600
#5A5A72
700
#48485B
800
#383847
900
#2B2B36
950
#1B1B22

Contrast Checker

Text on white

10.3:1

AA Pass AAA Pass

Text on black

2.04:1

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