#645CDF

#645CDF

Color Values

HEX

#645CDF

RGB

100, 92, 223

HSL

243.7, 67.2%, 61.8%

HSV

243.7, 58.7%, 87.5%

CMYK

55.2%, 58.7%, 0.0%, 12.5%

OKLCH

0.5554 0.193 280.8

Properties

Cool Dark Nearest: slateblue 2

Color Harmonies

Complementary

#645CDF

#D7DF5C

Analogous

#5C96DF

#A65CDF

#645CDF

Triadic

#645CDF

#DF645C

#5CDF64

Split Complementary

#645CDF

#DFA65C

#96DF5C

Tetradic

#645CDF

#DF5C96

#D7DF5C

#5CDFA6

Color Blindness Simulation

Original

#645CDF

Protanopia

#6160BF

Deuteranopia

#6162B8

Tritanopia

#64A6A1

Achromatopsia

#676767

CSS Usage

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

Tailwind Shades

50
#F4F3FC
100
#E4E3F7
200
#C6C3F3
300
#9E99EB
400
#6961E0
500
#342AD5
600
#2A21AB
700
#221B88
800
#1A156B
900
#17134E
950
#0E0C31

Contrast Checker

Text on white

5.07:1

AA Pass AAA Fail

Text on black

4.14:1

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