#646ACD

#646ACD

Color Values

HEX

#646ACD

RGB

100, 106, 205

HSL

236.6, 51.2%, 59.8%

HSV

236.6, 51.2%, 80.4%

CMYK

51.2%, 48.3%, 0.0%, 19.6%

OKLCH

0.5682 0.1502 277.9

Properties

Cool Dark Nearest: NCS S 1050-R90B Blue Violet

Color Harmonies

Complementary

#646ACD

#CDC764

Analogous

#649ECD

#9364CD

#646ACD

Triadic

#646ACD

#CD646A

#6ACD64

Split Complementary

#646ACD

#CD9364

#9ECD64

Tetradic

#646ACD

#CD649E

#CDC764

#64CD93

Color Blindness Simulation

Original

#646ACD

Protanopia

#6767B5

Deuteranopia

#6666AF

Tritanopia

#64A29E

Achromatopsia

#707070

CSS Usage

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

Tailwind Shades

50
#F4F4FB
100
#E5E6F5
200
#C9CBEE
300
#A2A6E1
400
#7076D1
500
#3E46C1
600
#32389A
700
#282D7B
800
#1F2360
900
#1A1D47
950
#10122D

Contrast Checker

Text on white

4.68:1

AA Pass AAA Fail

Text on black

4.49:1

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