#643B86

#643B86

Color Values

HEX

#643B86

RGB

100, 59, 134

HSL

272.8, 38.9%, 37.8%

HSV

272.8, 56.0%, 52.5%

CMYK

25.4%, 56.0%, 0.0%, 47.5%

OKLCH

0.4367 0.1245 307.2

Properties

Cool Dark Nearest: mediumpurple 4

Color Harmonies

Complementary

#643B86

#5D863B

Analogous

#3E3B86

#863B82

#643B86

Triadic

#643B86

#86643B

#3B8664

Split Complementary

#643B86

#82863B

#3B863E

Tetradic

#643B86

#863E3B

#5D863B

#3B8286

Color Blindness Simulation

Original

#643B86

Protanopia

#525274

Deuteranopia

#555870

Tritanopia

#626662

Achromatopsia

#494949

CSS Usage

background-color: #643B86;
color: #643B86;
border-color: #643B86;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F8F5FA
100
#EEE7F3
200
#DDCDE9
300
#C4AADA
400
#A47CC5
500
#844EB1
600
#6A3E8E
700
#553271
800
#422759
900
#321F41
950
#201429

Contrast Checker

Text on white

8.36:1

AA Pass AAA Pass

Text on black

2.51:1

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