#666BA8

#666BA8

Color Values

HEX

#666BA8

RGB

102, 107, 168

HSL

235.5, 27.5%, 52.9%

HSV

235.5, 39.3%, 65.9%

CMYK

39.3%, 36.3%, 0.0%, 34.1%

OKLCH

0.5499 0.0947 279.2

Properties

Cool Dark Nearest: RAL 4011 Pearl Violet

Color Harmonies

Complementary

#666BA8

#A8A366

Analogous

#668CA8

#8266A8

#666BA8

Triadic

#666BA8

#A8666B

#6BA866

Split Complementary

#666BA8

#A88266

#8CA866

Tetradic

#666BA8

#A8668C

#A8A366

#66A882

Color Blindness Simulation

Original

#666BA8

Protanopia

#686899

Deuteranopia

#686896

Tritanopia

#668E8B

Achromatopsia

#6E6E6E

CSS Usage

background-color: #666BA8;
color: #666BA8;
border-color: #666BA8;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F6F6F9
100
#E9EAF1
200
#D1D3E5
300
#B1B3D3
400
#878BBB
500
#5C62A3
600
#4A4E82
700
#3B3F68
800
#2E3151
900
#24263C
950
#171826

Contrast Checker

Text on white

4.96:1

AA Pass AAA Fail

Text on black

4.23:1

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