#645FB6

#645FB6

Color Values

HEX

#645FB6

RGB

100, 95, 182

HSL

243.4, 37.3%, 54.3%

HSV

243.4, 47.8%, 71.4%

CMYK

45.1%, 47.8%, 0.0%, 28.6%

OKLCH

0.5323 0.1331 283.5

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#645FB6

#B1B65F

Analogous

#5F86B6

#8F5FB6

#645FB6

Triadic

#645FB6

#B6645F

#5FB664

Split Complementary

#645FB6

#B68F5F

#86B65F

Tetradic

#645FB6

#B65F86

#B1B65F

#5FB68F

Color Blindness Simulation

Original

#645FB6

Protanopia

#6262A1

Deuteranopia

#62629C

Tritanopia

#64908D

Achromatopsia

#666666

CSS Usage

background-color: #645FB6;
color: #645FB6;
border-color: #645FB6;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#CFCEE9
300
#AEABD9
400
#817DC4
500
#5550AF
600
#44408C
700
#373370
800
#2B2858
900
#222041
950
#151429

Contrast Checker

Text on white

5.45:1

AA Pass AAA Fail

Text on black

3.85:1

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