#646F76

#646F76

Color Values

HEX

#646F76

RGB

100, 111, 118

HSL

203.3, 8.3%, 42.7%

HSV

203.3, 15.3%, 46.3%

CMYK

15.3%, 5.9%, 0.0%, 53.7%

OKLCH

0.5348 0.0173 235.6

Properties

Cool Dark Nearest: dimgrey

Color Harmonies

Complementary

#646F76

#766B64

Analogous

#647674

#646676

#646F76

Triadic

#646F76

#76646F

#6F7664

Split Complementary

#646F76

#766466

#767464

Tetradic

#646F76

#746476

#766B64

#667664

Color Blindness Simulation

Original

#646F76

Protanopia

#696974

Deuteranopia

#686774

Tritanopia

#657373

Achromatopsia

#6D6D6D

CSS Usage

background-color: #646F76;
color: #646F76;
border-color: #646F76;
Nearest Tailwind: Zinc 500 #71717A

Tailwind Shades

50
#F7F7F8
100
#ECEDEE
200
#D8DCDE
300
#BDC3C7
400
#99A2A8
500
#75828A
600
#5E686E
700
#4B5358
800
#3A4145
900
#2D3134
950
#1C1F21

Contrast Checker

Text on white

5.15:1

AA Pass AAA Fail

Text on black

4.08:1

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