#646EC1

#646EC1

Color Values

HEX

#646EC1

RGB

100, 110, 193

HSL

233.5, 42.9%, 57.5%

HSV

233.5, 48.2%, 75.7%

CMYK

48.2%, 43.0%, 0.0%, 24.3%

OKLCH

0.5687 0.1277 276.4

Properties

Cool Dark Nearest: Indigo

Color Harmonies

Complementary

#646EC1

#C1B764

Analogous

#649DC1

#8964C1

#646EC1

Triadic

#646EC1

#C1646E

#6EC164

Split Complementary

#646EC1

#C18964

#9DC164

Tetradic

#646EC1

#C1649D

#C1B764

#64C189

Color Blindness Simulation

Original

#646EC1

Protanopia

#6868AD

Deuteranopia

#6867A8

Tritanopia

#649D9A

Achromatopsia

#727272

CSS Usage

background-color: #646EC1;
color: #646EC1;
border-color: #646EC1;
Nearest Tailwind: Indigo 400 #818CF8

Tailwind Shades

50
#F5F5FA
100
#E7E8F4
200
#CCCFEB
300
#A8ADDC
400
#7881C9
500
#4955B6
600
#3A4492
700
#2F3675
800
#242A5B
900
#1E2243
950
#13152A

Contrast Checker

Text on white

4.62:1

AA Pass AAA Fail

Text on black

4.54:1

AA Pass 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