#64647F

#64647F

Color Values

HEX

#64647F

RGB

100, 100, 127

HSL

240.0, 11.9%, 44.5%

HSV

240.0, 21.3%, 49.8%

CMYK

21.3%, 21.3%, 0.0%, 50.2%

OKLCH

0.5135 0.0425 284.8

Properties

Cool Dark Nearest: RAL 5014 Pigeon Blue

Color Harmonies

Complementary

#64647F

#7F7F64

Analogous

#64717F

#71647F

#64647F

Triadic

#64647F

#7F6464

#647F64

Split Complementary

#64647F

#7F7164

#717F64

Tetradic

#64647F

#7F6471

#7F7F64

#647F71

Color Blindness Simulation

Original

#64647F

Protanopia

#646478

Deuteranopia

#646477

Tritanopia

#647372

Achromatopsia

#666666

CSS Usage

background-color: #64647F;
color: #64647F;
border-color: #64647F;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F7F7F8
100
#EBEBEF
200
#D7D7E0
300
#BBBBC9
400
#9595AC
500
#70708F
600
#5A5A72
700
#48485B
800
#383847
900
#2B2B36
950
#1B1B22

Contrast Checker

Text on white

5.72:1

AA Pass AAA Fail

Text on black

3.67:1

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