#666AAB

#666AAB

Color Values

HEX

#666AAB

RGB

102, 106, 171

HSL

236.5, 29.1%, 53.5%

HSV

236.5, 40.4%, 67.1%

CMYK

40.4%, 38.0%, 0.0%, 32.9%

OKLCH

0.5495 0.1006 279.8

Properties

Cool Dark Nearest: Indigo

Color Harmonies

Complementary

#666AAB

#ABA766

Analogous

#668CAB

#8466AB

#666AAB

Triadic

#666AAB

#AB666A

#6AAB66

Split Complementary

#666AAB

#AB8466

#8CAB66

Tetradic

#666AAB

#AB668C

#ABA766

#66AB84

Color Blindness Simulation

Original

#666AAB

Protanopia

#68689B

Deuteranopia

#686798

Tritanopia

#668F8C

Achromatopsia

#6E6E6E

CSS Usage

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

Tailwind Shades

50
#F5F6F9
100
#E9E9F2
200
#D1D2E6
300
#B0B2D4
400
#8588BC
500
#5A5FA5
600
#484C84
700
#3A3D69
800
#2D2F52
900
#24253D
950
#171827

Contrast Checker

Text on white

4.98:1

AA Pass AAA Fail

Text on black

4.21:1

AA Fail 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