#643E7C

#643E7C

Color Values

HEX

#643E7C

RGB

100, 62, 124

HSL

276.8, 33.3%, 36.5%

HSV

276.8, 50.0%, 48.6%

CMYK

19.4%, 50.0%, 0.0%, 51.4%

OKLCH

0.4357 0.1067 311.0

Properties

Cool Dark Nearest: mediumpurple 4

Color Harmonies

Complementary

#643E7C

#567C3E

Analogous

#453E7C

#7C3E75

#643E7C

Triadic

#643E7C

#7C643E

#3E7C64

Split Complementary

#643E7C

#757C3E

#3E7C45

Tetradic

#643E7C

#7C453E

#567C3E

#3E757C

Color Blindness Simulation

Original

#643E7C

Protanopia

#54536D

Deuteranopia

#565969

Tritanopia

#62615F

Achromatopsia

#4B4B4B

CSS Usage

background-color: #643E7C;
color: #643E7C;
border-color: #643E7C;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F8F5FA
100
#EEE8F2
200
#DECFE7
300
#C6ADD6
400
#A881C0
500
#8955AA
600
#6E4488
700
#58366D
800
#452B55
900
#34223F
950
#211528

Contrast Checker

Text on white

8.33:1

AA Pass AAA Pass

Text on black

2.52:1

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