#644EB1

#644EB1

Color Values

HEX

#644EB1

RGB

100, 78, 177

HSL

253.3, 38.8%, 50.0%

HSV

253.3, 55.9%, 69.4%

CMYK

43.5%, 55.9%, 0.0%, 30.6%

OKLCH

0.4978 0.1511 290.0

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#644EB1

#9BB14E

Analogous

#4E6AB1

#954EB1

#644EB1

Triadic

#644EB1

#B1644E

#4EB164

Split Complementary

#644EB1

#B1954E

#6AB14E

Tetradic

#644EB1

#B14E6A

#9BB14E

#4EB195

Color Blindness Simulation

Original

#644EB1

Protanopia

#5A5A99

Deuteranopia

#5C5D93

Tritanopia

#638682

Achromatopsia

#5A5A5A

CSS Usage

background-color: #644EB1;
color: #644EB1;
border-color: #644EB1;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F6F5FA
100
#EAE7F3
200
#D4CDE9
300
#B5AADA
400
#8C7CC5
500
#644EB1
600
#503E8E
700
#403271
800
#322758
900
#272041
950
#191429

Contrast Checker

Text on white

6.43:1

AA Pass AAA Fail

Text on black

3.27:1

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