#644F63

#644F63

Color Values

HEX

#644F63

RGB

100, 79, 99

HSL

302.9, 11.7%, 35.1%

HSV

302.9, 21.0%, 39.2%

CMYK

0.0%, 21.0%, 1.0%, 60.8%

OKLCH

0.4564 0.0416 327.8

Properties

Warm Dark Nearest: Eggplant

Color Harmonies

Complementary

#644F63

#4F6450

Analogous

#5B4F64

#644F58

#644F63

Triadic

#644F63

#63644F

#4F6364

Split Complementary

#644F63

#58644F

#4F645B

Tetradic

#644F63

#645B4F

#4F6450

#4F5864

Color Blindness Simulation

Original

#644F63

Protanopia

#5B5B5E

Deuteranopia

#5C5E5D

Tritanopia

#635A5A

Achromatopsia

#555555

CSS Usage

background-color: #644F63;
color: #644F63;
border-color: #644F63;
Nearest Tailwind: Zinc 600 #52525B

Tailwind Shades

50
#F8F7F8
100
#EFEBEF
200
#DFD7DF
300
#C9BBC8
400
#AC96AB
500
#8E718D
600
#725A71
700
#5B485A
800
#473846
900
#362B35
950
#221B22

Contrast Checker

Text on white

7.39:1

AA Pass AAA Pass

Text on black

2.84:1

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