#644F89

#644F89

Color Values

HEX

#644F89

RGB

100, 79, 137

HSL

261.7, 26.9%, 42.4%

HSV

261.7, 42.3%, 53.7%

CMYK

27.0%, 42.3%, 0.0%, 46.3%

OKLCH

0.4745 0.0937 299.5

Properties

Cool Dark Nearest: mediumpurple 4

Color Harmonies

Complementary

#644F89

#74894F

Analogous

#4F5789

#814F89

#644F89

Triadic

#644F89

#89644F

#4F8964

Split Complementary

#644F89

#89814F

#57894F

Tetradic

#644F89

#894F57

#74894F

#4F8981

Color Blindness Simulation

Original

#644F89

Protanopia

#5B5B7B

Deuteranopia

#5C5E78

Tritanopia

#63706D

Achromatopsia

#585858

CSS Usage

background-color: #644F89;
color: #644F89;
border-color: #644F89;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F7F6F9
100
#ECE9F1
200
#D9D2E5
300
#BDB1D2
400
#9A87BA
500
#765DA2
600
#5E4B81
700
#4C3C68
800
#3B2F51
900
#2D253C
950
#1D1726

Contrast Checker

Text on white

6.95:1

AA Pass AAA Fail

Text on black

3.02:1

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