#3F3687

#3F3687

Color Values

HEX

#3F3687

RGB

63, 54, 135

HSL

246.7, 42.9%, 37.1%

HSV

246.7, 60.0%, 52.9%

CMYK

53.3%, 60.0%, 0.0%, 47.1%

OKLCH

0.3902 0.1304 283.6

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#3F3687

#7E8736

Analogous

#365687

#683687

#3F3687

Triadic

#3F3687

#873F36

#36873F

Split Complementary

#3F3687

#876836

#568736

Tetradic

#3F3687

#873656

#7E8736

#368768

Color Blindness Simulation

Original

#3F3687

Protanopia

#3B3B73

Deuteranopia

#3C3C6F

Tritanopia

#3F6461

Achromatopsia

#3E3E3E

CSS Usage

background-color: #3F3687;
color: #3F3687;
border-color: #3F3687;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F5FA
100
#E8E7F4
200
#CFCCEB
300
#ADA8DC
400
#8178C9
500
#5549B6
600
#443A92
700
#362F75
800
#2B245B
900
#221E43
950
#15132A

Contrast Checker

Text on white

10.05:1

AA Pass AAA Pass

Text on black

2.09:1

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