#645CB8

#645CB8

Color Values

HEX

#645CB8

RGB

100, 92, 184

HSL

245.2, 39.3%, 54.1%

HSV

245.2, 50.0%, 72.2%

CMYK

45.7%, 50.0%, 0.0%, 27.8%

OKLCH

0.5279 0.1403 284.5

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#645CB8

#B0B85C

Analogous

#5C82B8

#925CB8

#645CB8

Triadic

#645CB8

#B8645C

#5CB864

Split Complementary

#645CB8

#B8925C

#82B85C

Tetradic

#645CB8

#B85C82

#B0B85C

#5CB892

Color Blindness Simulation

Original

#645CB8

Protanopia

#6160A2

Deuteranopia

#61629C

Tritanopia

#64908C

Achromatopsia

#646464

CSS Usage

background-color: #645CB8;
color: #645CB8;
border-color: #645CB8;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#D0CDE9
300
#AEAADA
400
#827CC6
500
#564DB2
600
#453E8E
700
#373272
800
#2B2759
900
#221F42
950
#161429

Contrast Checker

Text on white

5.58:1

AA Pass AAA Fail

Text on black

3.76:1

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