#646F84

#646F84

Color Values

HEX

#646F84

RGB

100, 111, 132

HSL

219.4, 13.8%, 45.5%

HSV

219.4, 24.2%, 51.8%

CMYK

24.2%, 15.9%, 0.0%, 48.2%

OKLCH

0.5402 0.0356 263.3

Properties

Cool Dark Nearest: RAL 5014 Pigeon Blue

Color Harmonies

Complementary

#646F84

#847964

Analogous

#647F84

#696484

#646F84

Triadic

#646F84

#84646F

#6F8464

Split Complementary

#646F84

#846964

#7F8464

Tetradic

#646F84

#84647F

#847964

#648469

Color Blindness Simulation

Original

#646F84

Protanopia

#69697F

Deuteranopia

#68677E

Tritanopia

#657B7A

Achromatopsia

#6E6E6E

CSS Usage

background-color: #646F84;
color: #646F84;
border-color: #646F84;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F7F8
100
#EBECEF
200
#D6DAE0
300
#B9BFCA
400
#949DAE
500
#6E7A91
600
#586274
700
#464E5D
800
#373D49
900
#2A2F36
950
#1B1D22

Contrast Checker

Text on white

5.06:1

AA Pass AAA Fail

Text on black

4.15:1

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