#646DFB

#646DFB

Color Values

HEX

#646DFB

RGB

100, 109, 251

HSL

236.4, 95.0%, 68.8%

HSV

236.4, 60.2%, 98.4%

CMYK

60.2%, 56.6%, 0.0%, 1.6%

OKLCH

0.6057 0.2082 275.5

Properties

Cool Light Nearest: slateblue 1

Color Harmonies

Complementary

#646DFB

#FBF264

Analogous

#64B9FB

#A664FB

#646DFB

Triadic

#646DFB

#FB646D

#6DFB64

Split Complementary

#646DFB

#FBA664

#B9FB64

Tetradic

#646DFB

#FB64B9

#FBF264

#64FBA6

Color Blindness Simulation

Original

#646DFB

Protanopia

#6868D9

Deuteranopia

#6767D0

Tritanopia

#64BDB8

Achromatopsia

#757575

CSS Usage

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

Tailwind Shades

50
#F1F2FE
100
#DFE0FC
200
#B9BDFD
300
#888FFC
400
#4752FA
500
#0615F9
600
#0511C7
700
#040D9F
800
#030A7C
900
#070C5A
950
#040839

Contrast Checker

Text on white

4.1:1

AA Fail AAA Fail

Text on black

5.12:1

AA Pass AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026