#646AB8

#646AB8

Color Values

HEX

#646AB8

RGB

100, 106, 184

HSL

235.7, 37.2%, 55.7%

HSV

235.7, 45.7%, 72.2%

CMYK

45.7%, 42.4%, 0.0%, 27.8%

OKLCH

0.5553 0.1202 278.4

Properties

Cool Dark Nearest: Indigo

Color Harmonies

Complementary

#646AB8

#B8B264

Analogous

#6494B8

#8864B8

#646AB8

Triadic

#646AB8

#B8646A

#6AB864

Split Complementary

#646AB8

#B88864

#94B864

Tetradic

#646AB8

#B86494

#B8B264

#64B888

Color Blindness Simulation

Original

#646AB8

Protanopia

#6767A5

Deuteranopia

#6666A1

Tritanopia

#649693

Achromatopsia

#6E6E6E

CSS Usage

background-color: #646AB8;
color: #646AB8;
border-color: #646AB8;
Nearest Tailwind: Indigo 400 #818CF8

Tailwind Shades

50
#F5F5FA
100
#E8E8F3
200
#CED0E9
300
#ABAED9
400
#7E83C4
500
#5057AF
600
#40458C
700
#333870
800
#282B57
900
#202341
950
#141629

Contrast Checker

Text on white

4.89:1

AA Pass AAA Fail

Text on black

4.3:1

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