#646BC9

#646BC9

Color Values

HEX

#646BC9

RGB

100, 107, 201

HSL

235,8, 48,3%, 59,0%

HSV

235,8, 50,2%, 78,8%

CMYK

50,2%, 46,8%, 0,0%, 21,2%

OKLCH

0,5676 0,1432 277,6

Properties

Cool Dark Nearest: NCS S 1050-R90B Blue Violet

Color Harmonies

Complementary

#646BC9

#C9C264

Analogous

#649EC9

#8F64C9

#646BC9

Triadic

#646BC9

#C9646B

#6BC964

Split Complementary

#646BC9

#C98F64

#9EC964

Tetradic

#646BC9

#C9649E

#C9C264

#64C98F

Color Blindness Simulation

Original

#646BC9

Protanopia

#6767B2

Deuteranopia

#6766AD

Tritanopia

#64A09C

Achromatopsia

#707070

CSS Usage

background-color: #646BC9;
color: #646BC9;
border-color: #646BC9;
Nearest Tailwind: Indigo 400 #818CF8

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CACCED
300
#A4A8DF
400
#7379CE
500
#424BBD
600
#353C97
700
#2A3079
800
#21255F
900
#1B1E46
950
#11132C

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

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