#644D66

#644D66

Color Values

HEX

#644D66

RGB

100, 77, 102

HSL

295.2, 14.0%, 35.1%

HSV

295.2, 24.5%, 40.0%

CMYK

2.0%, 24.5%, 0.0%, 60.0%

OKLCH

0.4534 0.0493 323.7

Properties

Cool Dark Nearest: Eggplant

Color Harmonies

Complementary

#644D66

#4F664D

Analogous

#584D66

#664D5C

#644D66

Triadic

#644D66

#66644D

#4D6664

Split Complementary

#644D66

#5C664D

#4D6658

Tetradic

#644D66

#66584D

#4F664D

#4D5C66

Color Blindness Simulation

Original

#644D66

Protanopia

#5A5A60

Deuteranopia

#5B5D5E

Tritanopia

#635B5A

Achromatopsia

#545454

CSS Usage

background-color: #644D66;
color: #644D66;
border-color: #644D66;
Nearest Tailwind: Zinc 600 #52525B

Tailwind Shades

50
#F8F6F8
100
#EFEBEF
200
#DFD6E0
300
#C9B9CA
400
#AC93AE
500
#8E6E91
600
#725874
700
#5B465D
800
#473749
900
#362A37
950
#221B22

Contrast Checker

Text on white

7.51:1

AA Pass AAA Pass

Text on black

2.8:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026