#646EAF

#646EAF

Color Values

HEX

#646EAF

RGB

100, 110, 175

HSL

232.0, 31.9%, 53.9%

HSV

232.0, 42.9%, 68.6%

CMYK

42.9%, 37.1%, 0.0%, 31.4%

OKLCH

0.5584 0.1014 276.0

Properties

Cool Dark Nearest: Indigo

Color Harmonies

Complementary

#646EAF

#AFA564

Analogous

#6493AF

#7F64AF

#646EAF

Triadic

#646EAF

#AF646E

#6EAF64

Split Complementary

#646EAF

#AF7F64

#93AF64

Tetradic

#646EAF

#AF6493

#AFA564

#64AF7F

Color Blindness Simulation

Original

#646EAF

Protanopia

#68689F

Deuteranopia

#68679C

Tritanopia

#649390

Achromatopsia

#717171

CSS Usage

background-color: #646EAF;
color: #646EAF;
border-color: #646EAF;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F5F6F9
100
#E8EAF2
200
#D0D3E7
300
#AEB3D5
400
#838BBF
500
#5762A8
600
#454E87
700
#383F6C
800
#2B3154
900
#23263E
950
#161827

Contrast Checker

Text on white

4.78:1

AA Pass AAA Fail

Text on black

4.39:1

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