#3F3786

#3F3786

Color Values

HEX

#3F3786

RGB

63, 55, 134

HSL

246.1, 41.8%, 37.1%

HSV

246.1, 59.0%, 52.5%

CMYK

53.0%, 59.0%, 0.0%, 47.5%

OKLCH

0.3913 0.1275 283.4

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#3F3786

#7E8637

Analogous

#375786

#673786

#3F3786

Triadic

#3F3786

#863F37

#37863F

Split Complementary

#3F3786

#866737

#578637

Tetradic

#3F3786

#863757

#7E8637

#378667

Color Blindness Simulation

Original

#3F3786

Protanopia

#3C3B73

Deuteranopia

#3C3D6E

Tritanopia

#3F6460

Achromatopsia

#3E3E3E

CSS Usage

background-color: #3F3786;
color: #3F3786;
border-color: #3F3786;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#CFCCEA
300
#ADA8DB
400
#8179C8
500
#554AB5
600
#443B91
700
#362F74
800
#2B255A
900
#221E43
950
#15132A

Contrast Checker

Text on white

9.99:1

AA Pass AAA Pass

Text on black

2.1:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026