#666FB7

#666FB7

Color Values

HEX

#666FB7

RGB

102, 111, 183

HSL

233.3, 36.0%, 55.9%

HSV

233.3, 44.3%, 71.8%

CMYK

44.3%, 39.3%, 0.0%, 28.2%

OKLCH

0.5664 0.1113 276.8

Properties

Cool Dark Nearest: Indigo

Color Harmonies

Complementary

#666FB7

#B7AE66

Analogous

#6698B7

#8666B7

#666FB7

Triadic

#666FB7

#B7666F

#6FB766

Split Complementary

#666FB7

#B78666

#98B766

Tetradic

#666FB7

#B76698

#B7AE66

#66B786

Color Blindness Simulation

Original

#666FB7

Protanopia

#6A6AA6

Deuteranopia

#6969A1

Tritanopia

#669895

Achromatopsia

#727272

CSS Usage

background-color: #666FB7;
color: #666FB7;
border-color: #666FB7;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F5F6FA
100
#E8E9F3
200
#CED1E8
300
#ACB1D8
400
#7F86C3
500
#525CAD
600
#41498B
700
#343B6F
800
#292E57
900
#212440
950
#151729

Contrast Checker

Text on white

4.64:1

AA Pass AAA Fail

Text on black

4.52:1

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