#643F86

#643F86

Color Values

HEX

#643F86

RGB

100, 63, 134

HSL

271,3, 36,0%, 38,6%

HSV

271,3, 53,0%, 52,5%

CMYK

25,4%, 53,0%, 0,0%, 47,5%

OKLCH

0,4434 0,1177 306,3

Properties

Cool Dark Nearest: mediumpurple 4

Color Harmonies

Complementary

#643F86

#61863F

Analogous

#413F86

#863F84

#643F86

Triadic

#643F86

#86643F

#3F8664

Split Complementary

#643F86

#84863F

#3F8641

Tetradic

#643F86

#86413F

#61863F

#3F8486

Color Blindness Simulation

Original

#643F86

Protanopia

#545475

Deuteranopia

#565971

Tritanopia

#626764

Achromatopsia

#4C4C4C

CSS Usage

background-color: #643F86;
color: #643F86;
border-color: #643F86;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F7F5FA
100
#EDE8F3
200
#DCCEE8
300
#C3ACD8
400
#A27FC3
500
#8152AD
600
#68418B
700
#53346F
800
#412957
900
#312140
950
#1F1529

Contrast Checker

Text on white

8,09:1

AA Pass AAA Pass

Text on black

2,6:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026