#3F3C71

#3F3C71

Color Values

HEX

#3F3C71

RGB

63, 60, 113

HSL

243.4, 30.6%, 33.9%

HSV

243.4, 46.9%, 44.3%

CMYK

44.2%, 46.9%, 0.0%, 55.7%

OKLCH

0.3861 0.0883 284.0

Properties

Cool Dark Nearest: RAL 5017 Traffic Blue

Color Harmonies

Complementary

#3F3C71

#6E713C

Analogous

#3C5371

#593C71

#3F3C71

Triadic

#3F3C71

#713F3C

#3C713F

Split Complementary

#3F3C71

#71593C

#53713C

Tetradic

#3F3C71

#713C53

#6E713C

#3C7159

Color Blindness Simulation

Original

#3F3C71

Protanopia

#3E3E64

Deuteranopia

#3E3E61

Tritanopia

#3F5A58

Achromatopsia

#404040

CSS Usage

background-color: #3F3C71;
color: #3F3C71;
border-color: #3F3C71;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F6F5F9
100
#E9E9F2
200
#D2D0E6
300
#B1AFD5
400
#8784BE
500
#5D58A7
600
#4A4785
700
#3B396B
800
#2E2C53
900
#25233E
950
#171627

Contrast Checker

Text on white

10.02:1

AA Pass AAA Pass

Text on black

2.1:1

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