#643989

#643989

Color Values

HEX

#643989

RGB

100, 57, 137

HSL

272.2, 41.2%, 38.0%

HSV

272.2, 58.4%, 53.7%

CMYK

27.0%, 58.4%, 0.0%, 46.3%

OKLCH

0.4355 0.1316 306.5

Properties

Cool Dark Nearest: mediumorchid 4

Color Harmonies

Complementary

#643989

#5E8939

Analogous

#3C3989

#893986

#643989

Triadic

#643989

#896439

#398964

Split Complementary

#643989

#868939

#39893C

Tetradic

#643989

#893C39

#5E8939

#398689

Color Blindness Simulation

Original

#643989

Protanopia

#515176

Deuteranopia

#545771

Tritanopia

#626663

Achromatopsia

#484848

CSS Usage

background-color: #643989;
color: #643989;
border-color: #643989;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F8F5FA
100
#EEE7F3
200
#DCCDEA
300
#C4A9DB
400
#A47AC8
500
#834BB4
600
#693C90
700
#543073
800
#42255A
900
#321E42
950
#1F132A

Contrast Checker

Text on white

8.44:1

AA Pass AAA Pass

Text on black

2.49:1

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