#644DBC

#644DBC

Color Values

HEX

#644DBC

RGB

100, 77, 188

HSL

252.4, 45.3%, 52.0%

HSV

252.4, 59.0%, 73.7%

CMYK

46.8%, 59.0%, 0.0%, 26.3%

OKLCH

0.504 0.1671 288.5

Properties

Cool Dark Nearest: slateblue 3

Color Harmonies

Complementary

#644DBC

#A5BC4D

Analogous

#4D6EBC

#9C4DBC

#644DBC

Triadic

#644DBC

#BC644D

#4DBC64

Split Complementary

#644DBC

#BC9C4D

#6EBC4D

Tetradic

#644DBC

#BC4D6E

#A5BC4D

#4DBC9C

Color Blindness Simulation

Original

#644DBC

Protanopia

#5A5AA1

Deuteranopia

#5B5D9B

Tritanopia

#638C87

Achromatopsia

#5A5A5A

CSS Usage

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

Tailwind Shades

50
#F6F4FA
100
#E9E6F4
200
#D2CBEB
300
#B2A6DE
400
#8876CB
500
#5E46B9
600
#4B3894
700
#3C2D77
800
#2F235D
900
#251D44
950
#17122B

Contrast Checker

Text on white

6.31:1

AA Pass AAA Fail

Text on black

3.33:1

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