#640DB7

#640DB7

Color Values

HEX

#640DB7

RGB

100, 13, 183

HSL

270.7, 86.7%, 38.4%

HSV

270.7, 92.9%, 71.8%

CMYK

45.4%, 92.9%, 0.0%, 28.2%

OKLCH

0.4304 0.2246 297.9

Properties

Cool Dark Nearest: purple 3

Color Harmonies

Complementary

#640DB7

#60B70D

Analogous

#0F0DB7

#B70DB5

#640DB7

Triadic

#640DB7

#B7640D

#0DB764

Split Complementary

#640DB7

#B5B70D

#0DB70F

Tetradic

#640DB7

#B70F0D

#60B70D

#0DB5B7

Color Blindness Simulation

Original

#640DB7

Protanopia

#3E3E8E

Deuteranopia

#434A84

Tritanopia

#606D66

Achromatopsia

#2C2C2C

CSS Usage

background-color: #640DB7;
color: #640DB7;
border-color: #640DB7;
Nearest Tailwind: Violet 800 #5B21B6

Tailwind Shades

50
#F7F2FD
100
#EDE0FA
200
#DCBCFA
300
#C38DF7
400
#A34FF2
500
#8211EE
600
#680EBE
700
#530B98
800
#410877
900
#310B56
950
#1F0736

Contrast Checker

Text on white

9.2:1

AA Pass AAA Pass

Text on black

2.28:1

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