#646CC6

#646CC6

Color Values

HEX

#646CC6

RGB

100, 108, 198

HSL

235.1, 46.2%, 58.4%

HSV

235.1, 49.5%, 77.6%

CMYK

49.5%, 45.5%, 0.0%, 22.4%

OKLCH

0.5677 0.1376 277.2

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#646CC6

#C6BE64

Analogous

#649DC6

#8D64C6

#646CC6

Triadic

#646CC6

#C6646C

#6CC664

Split Complementary

#646CC6

#C68D64

#9DC664

Tetradic

#646CC6

#C6649D

#C6BE64

#64C68D

Color Blindness Simulation

Original

#646CC6

Protanopia

#6768B0

Deuteranopia

#6766AB

Tritanopia

#649F9B

Achromatopsia

#717171

CSS Usage

background-color: #646CC6;
color: #646CC6;
border-color: #646CC6;
Nearest Tailwind: Indigo 400 #818CF8

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CBCEEC
300
#A6AADE
400
#757CCC
500
#454EBA
600
#373F95
700
#2C3277
800
#22275D
900
#1C2045
950
#12142B

Contrast Checker

Text on white

4.66:1

AA Pass AAA Fail

Text on black

4.5:1

AA Pass AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026