#645887

#645887

Color Values

HEX

#645887

RGB

100, 88, 135

HSL

255.3, 21.1%, 43.7%

HSV

255.3, 34.8%, 52.9%

CMYK

25.9%, 34.8%, 0.0%, 47.1%

OKLCH

0.4915 0.075 295.2

Properties

Cool Dark Nearest: RAL 4005 Blue Lilac

Color Harmonies

Complementary

#645887

#7B8758

Analogous

#586387

#7B5887

#645887

Triadic

#645887

#876458

#588764

Split Complementary

#645887

#877B58

#638758

Tetradic

#645887

#875863

#7B8758

#58877B

Color Blindness Simulation

Original

#645887

Protanopia

#5F5F7C

Deuteranopia

#606079

Tritanopia

#637371

Achromatopsia

#5E5E5E

CSS Usage

background-color: #645887;
color: #645887;
border-color: #645887;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F7F6F9
100
#ECEAF0
200
#D8D4E3
300
#BBB5CF
400
#978DB5
500
#72659A
600
#5B507C
700
#494063
800
#39324D
900
#2C273A
950
#1C1924

Contrast Checker

Text on white

6.39:1

AA Pass AAA Fail

Text on black

3.29:1

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