#645CE7

#645CE7

Color Values

HEX

#645CE7

RGB

100, 92, 231

HSL

243.5, 74.3%, 63.3%

HSV

243.5, 60.2%, 90.6%

CMYK

56.7%, 60.2%, 0.0%, 9.4%

OKLCH

0.5615 0.2033 280.2

Properties

Cool Dark Nearest: slateblue 2

Color Harmonies

Complementary

#645CE7

#DFE75C

Analogous

#5C99E7

#AA5CE7

#645CE7

Triadic

#645CE7

#E7645C

#5CE764

Split Complementary

#645CE7

#E7AA5C

#99E75C

Tetradic

#645CE7

#E75C99

#DFE75C

#5CE7AA

Color Blindness Simulation

Original

#645CE7

Protanopia

#6160C5

Deuteranopia

#6162BD

Tritanopia

#64ABA5

Achromatopsia

#686868

CSS Usage

background-color: #645CE7;
color: #645CE7;
border-color: #645CE7;
Nearest Tailwind: Indigo 500 #6366F1

Tailwind Shades

50
#F3F3FC
100
#E3E2F8
200
#C4C1F6
300
#9A94EF
400
#635BE7
500
#2C21DE
600
#231AB2
700
#1C158E
800
#16106F
900
#141051
950
#0D0A33

Contrast Checker

Text on white

4.97:1

AA Pass AAA Fail

Text on black

4.23:1

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