#645DA1

#645DA1

Color Values

HEX

#645DA1

RGB

100, 93, 161

HSL

246.2, 26.8%, 49.8%

HSV

246.2, 42.2%, 63.1%

CMYK

37.9%, 42.2%, 0.0%, 36.9%

OKLCH

0.5158 0.1056 286.8

Properties

Cool Dark Nearest: mediumpurple 4

Color Harmonies

Complementary

#645DA1

#9AA15D

Analogous

#5D78A1

#865DA1

#645DA1

Triadic

#645DA1

#A1645D

#5DA164

Split Complementary

#645DA1

#A1865D

#78A15D

Tetradic

#645DA1

#A15D78

#9AA15D

#5DA186

Color Blindness Simulation

Original

#645DA1

Protanopia

#616191

Deuteranopia

#61628D

Tritanopia

#648481

Achromatopsia

#636363

CSS Usage

background-color: #645DA1;
color: #645DA1;
border-color: #645DA1;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F6F6F9
100
#EAE9F1
200
#D4D2E5
300
#B5B1D2
400
#8D87BA
500
#645DA2
600
#504B81
700
#403C67
800
#322F51
900
#27253C
950
#191726

Contrast Checker

Text on white

5.8:1

AA Pass AAA Fail

Text on black

3.62:1

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