#646DBB

#646DBB

Color Values

HEX

#646DBB

RGB

100, 109, 187

HSL

233,8, 39,0%, 56,3%

HSV

233,8, 46,5%, 73,3%

CMYK

46,5%, 41,7%, 0,0%, 26,7%

OKLCH

0,5631 0,1204 276,8

Properties

Cool Dark Nearest: Indigo

Color Harmonies

Complementary

#646DBB

#BBB264

Analogous

#6499BB

#8764BB

#646DBB

Triadic

#646DBB

#BB646D

#6DBB64

Split Complementary

#646DBB

#BB8764

#99BB64

Tetradic

#646DBB

#BB6499

#BBB264

#64BB87

Color Blindness Simulation

Original

#646DBB

Protanopia

#6868A8

Deuteranopia

#6767A4

Tritanopia

#649996

Achromatopsia

#717171

CSS Usage

background-color: #646DBB;
color: #646DBB;
border-color: #646DBB;
Nearest Tailwind: Indigo 400 #818CF8

Tailwind Shades

50
#F5F5FA
100
#E7E8F3
200
#CDD0E9
300
#AAAFDA
400
#7C83C5
500
#4E58B1
600
#3E468E
700
#323871
800
#272C59
900
#1F2341
950
#141629

Contrast Checker

Text on white

4,72:1

AA Pass AAA Fail

Text on black

4,45:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026