#646BF3

#646BF3

Color Values

HEX

#646BF3

RGB

100, 107, 243

HSL

237.1, 85.6%, 67.3%

HSV

237.1, 58.8%, 95.3%

CMYK

58.8%, 56.0%, 0.0%, 4.7%

OKLCH

0.5963 0.2003 276.3

Properties

Cool Light Nearest: slateblue 2

Color Harmonies

Complementary

#646BF3

#F3EC64

Analogous

#64B3F3

#A564F3

#646BF3

Triadic

#646BF3

#F3646B

#6BF364

Split Complementary

#646BF3

#F3A564

#B3F364

Tetradic

#646BF3

#F364B3

#F3EC64

#64F3A5

Color Blindness Simulation

Original

#646BF3

Protanopia

#6767D2

Deuteranopia

#6766CA

Tritanopia

#64B8B2

Achromatopsia

#737373

CSS Usage

background-color: #646BF3;
color: #646BF3;
border-color: #646BF3;
Nearest Tailwind: Indigo 500 #6366F1

Tailwind Shades

50
#F2F2FD
100
#E0E1FA
200
#BDC0FA
300
#8D92F6
400
#5058F1
500
#121DED
600
#0F17BD
700
#0C1397
800
#090E76
900
#0B0F56
950
#070936

Contrast Checker

Text on white

4.25:1

AA Fail AAA Fail

Text on black

4.94:1

AA Pass AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026