#646F72

#646F72

Color Values

HEX

#646F72

RGB

100, 111, 114

HSL

192.9, 6.5%, 42.0%

HSV

192.9, 12.3%, 44.7%

CMYK

12.3%, 2.6%, 0.0%, 55.3%

OKLCH

0.5334 0.0142 215.9

Properties

Cool Dark Nearest: dimgrey

Color Harmonies

Complementary

#646F72

#726764

Analogous

#64726E

#646872

#646F72

Triadic

#646F72

#72646F

#6F7264

Split Complementary

#646F72

#726468

#726E64

Tetradic

#646F72

#6E6472

#726764

#687264

Color Blindness Simulation

Original

#646F72

Protanopia

#696971

Deuteranopia

#686771

Tritanopia

#657171

Achromatopsia

#6D6D6D

CSS Usage

background-color: #646F72;
color: #646F72;
border-color: #646F72;
Nearest Tailwind: Neutral 500 #737373

Tailwind Shades

50
#F7F8F8
100
#ECEEEE
200
#D9DDDE
300
#BEC4C6
400
#9BA4A7
500
#778488
600
#5F6A6D
700
#4C5557
800
#3C4244
900
#2E3233
950
#1D2020

Contrast Checker

Text on white

5.17:1

AA Pass AAA Fail

Text on black

4.06:1

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