#643B8F

#643B8F

Color Values

HEX

#643B8F

RGB

100, 59, 143

HSL

269.3, 41.6%, 39.6%

HSV

269.3, 58.7%, 56.1%

CMYK

30.1%, 58.7%, 0.0%, 43.9%

OKLCH

0.4427 0.1358 303.9

Properties

Cool Dark Nearest: Royal Purple

Color Harmonies

Complementary

#643B8F

#668F3B

Analogous

#3B3C8F

#8E3B8F

#643B8F

Triadic

#643B8F

#8F643B

#3B8F64

Split Complementary

#643B8F

#8F8E3B

#3C8F3B

Tetradic

#643B8F

#8F3B3C

#668F3B

#3B8F8E

Color Blindness Simulation

Original

#643B8F

Protanopia

#52527B

Deuteranopia

#555876

Tritanopia

#626B67

Achromatopsia

#4A4A4A

CSS Usage

background-color: #643B8F;
color: #643B8F;
border-color: #643B8F;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F7F5FA
100
#EDE7F3
200
#DBCCEA
300
#C1A8DB
400
#A079C8
500
#7E4AB5
600
#653C90
700
#513074
800
#3F255A
900
#301E43
950
#1E132A

Contrast Checker

Text on white

8.19:1

AA Pass AAA Pass

Text on black

2.56:1

AA Fail AAA Fail

Related Articles

Tutorials

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

ม.ค. 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

ม.ค. 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

ม.ค. 15, 2026