#666CC3

#666CC3

Color Values

HEX

#666CC3

RGB

102, 108, 195

HSL

236.1, 43.7%, 58.2%

HSV

236.1, 47.7%, 76.5%

CMYK

47.7%, 44.6%, 0.0%, 23.5%

OKLCH

0.5673 0.1329 278.3

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#666CC3

#C3BD66

Analogous

#669AC3

#8E66C3

#666CC3

Triadic

#666CC3

#C3666C

#6CC366

Split Complementary

#666CC3

#C38E66

#9AC366

Tetradic

#666CC3

#C3669A

#C3BD66

#66C38E

Color Blindness Simulation

Original

#666CC3

Protanopia

#6969AE

Deuteranopia

#6868A9

Tritanopia

#669D9A

Achromatopsia

#717171

CSS Usage

background-color: #666CC3;
color: #666CC3;
border-color: #666CC3;
Nearest Tailwind: Indigo 400 #818CF8

Tailwind Shades

50
#F5F5FA
100
#E7E7F4
200
#CCCEEB
300
#A7ABDD
400
#777DCA
500
#484FB7
600
#393F93
700
#2E3375
800
#24285C
900
#1D2044
950
#13142B

Contrast Checker

Text on white

4.67:1

AA Pass AAA Fail

Text on black

4.5:1

AA Fail 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