#64677F

#64677F

Color Values

HEX

#64677F

RGB

100, 103, 127

HSL

233.3, 11.9%, 44.5%

HSV

233.3, 21.3%, 49.8%

CMYK

21.3%, 18.9%, 0.0%, 50.2%

OKLCH

0.5201 0.0379 279.4

Properties

Cool Dark Nearest: RAL 5014 Pigeon Blue

Color Harmonies

Complementary

#64677F

#7F7C64

Analogous

#64747F

#6E647F

#64677F

Triadic

#64677F

#7F6467

#677F64

Split Complementary

#64677F

#7F6E64

#747F64

Tetradic

#64677F

#7F6474

#7F7C64

#647F6E

Color Blindness Simulation

Original

#64677F

Protanopia

#656579

Deuteranopia

#656578

Tritanopia

#647574

Achromatopsia

#686868

CSS Usage

background-color: #64677F;
color: #64677F;
border-color: #64677F;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F7F7F8
100
#EBECEF
200
#D7D8E0
300
#BBBCC9
400
#9598AC
500
#70748F
600
#5A5D72
700
#484A5B
800
#383A47
900
#2B2C36
950
#1B1C22

Contrast Checker

Text on white

5.54:1

AA Pass AAA Fail

Text on black

3.79:1

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