#645F9F

#645F9F

Color Values

HEX

#645F9F

RGB

100, 95, 159

HSL

244.7, 25.2%, 49.8%

HSV

244.7, 40.3%, 62.4%

CMYK

37.1%, 40.3%, 0.0%, 37.6%

OKLCH

0.5187 0.0995 285.9

Properties

Cool Dark Nearest: mediumpurple 4

Color Harmonies

Complementary

#645F9F

#9A9F5F

Analogous

#5F7A9F

#845F9F

#645F9F

Triadic

#645F9F

#9F645F

#5F9F64

Split Complementary

#645F9F

#9F845F

#7A9F5F

Tetradic

#645F9F

#9F5F7A

#9A9F5F

#5F9F84

Color Blindness Simulation

Original

#645F9F

Protanopia

#626290

Deuteranopia

#62628C

Tritanopia

#648381

Achromatopsia

#656565

CSS Usage

background-color: #645F9F;
color: #645F9F;
border-color: #645F9F;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F6F6F9
100
#EAE9F1
200
#D4D2E4
300
#B5B2D1
400
#8D89B8
500
#645FA0
600
#504C80
700
#403D66
800
#323050
900
#27253B
950
#191826

Contrast Checker

Text on white

5.71:1

AA Pass AAA Fail

Text on black

3.68:1

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