#643E80

#643E80

Color Values

HEX

#643E80

RGB

100, 62, 128

HSL

274.5, 34.7%, 37.3%

HSV

274.5, 51.6%, 50.2%

CMYK

21.9%, 51.6%, 0.0%, 49.8%

OKLCH

0.4381 0.1118 309.1

Properties

Cool Dark Nearest: mediumpurple 4

Color Harmonies

Complementary

#643E80

#5A803E

Analogous

#433E80

#803E7B

#643E80

Triadic

#643E80

#80643E

#3E8064

Split Complementary

#643E80

#7B803E

#3E8043

Tetradic

#643E80

#80433E

#5A803E

#3E7B80

Color Blindness Simulation

Original

#643E80

Protanopia

#545370

Deuteranopia

#56596C

Tritanopia

#626361

Achromatopsia

#4B4B4B

CSS Usage

background-color: #643E80;
color: #643E80;
border-color: #643E80;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F8F5FA
100
#EEE8F2
200
#DDCFE8
300
#C5ADD7
400
#A680C1
500
#8653AC
600
#6B4389
700
#56356E
800
#432A56
900
#332140
950
#201528

Contrast Checker

Text on white

8.26:1

AA Pass AAA Pass

Text on black

2.54:1

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