#645EB9

#645EB9

Color Values

HEX

#645EB9

RGB

100, 94, 185

HSL

244.0, 39.4%, 54.7%

HSV

244.0, 49.2%, 72.5%

CMYK

45.9%, 49.2%, 0.0%, 27.5%

OKLCH

0.5323 0.1388 283.6

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#645EB9

#B3B95E

Analogous

#5E85B9

#925EB9

#645EB9

Triadic

#645EB9

#B9645E

#5EB964

Split Complementary

#645EB9

#B9925E

#85B95E

Tetradic

#645EB9

#B95E85

#B3B95E

#5EB992

Color Blindness Simulation

Original

#645EB9

Protanopia

#6161A3

Deuteranopia

#62629E

Tritanopia

#64928E

Achromatopsia

#666666

CSS Usage

background-color: #645EB9;
color: #645EB9;
border-color: #645EB9;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#CFCDE9
300
#ADAADA
400
#807BC6
500
#544DB2
600
#433E8E
700
#363172
800
#2A2759
900
#221F42
950
#151429

Contrast Checker

Text on white

5.46:1

AA Pass AAA Fail

Text on black

3.84:1

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