#0666BD

#0666BD

Color Values

HEX

#0666BD

RGB

6, 102, 189

HSL

208.5, 93.8%, 38.2%

HSV

208.5, 96.8%, 74.1%

CMYK

96.8%, 46.0%, 0.0%, 25.9%

OKLCH

0.5116 0.1572 253.5

Properties

Cool Dark Nearest: Denim

Color Harmonies

Complementary

#0666BD

#BD5D06

Analogous

#06BDB8

#060BBD

#0666BD

Triadic

#0666BD

#BD0666

#66BD06

Split Complementary

#0666BD

#BD060B

#BDB806

Tetradic

#0666BD

#B806BD

#BD5D06

#0BBD06

Color Blindness Simulation

Original

#0666BD

Protanopia

#3030A8

Deuteranopia

#2A23A3

Tritanopia

#0B9794

Achromatopsia

#585858

CSS Usage

background-color: #0666BD;
color: #0666BD;
border-color: #0666BD;
Nearest Tailwind: Blue 500 #3B82F6

Tailwind Shades

50
#F1F8FD
100
#DFEEFB
200
#BADDFD
300
#88C5FB
400
#48A5F9
500
#0885F7
600
#066BC6
700
#05559E
800
#04437C
900
#083259
950
#052038

Contrast Checker

Text on white

5.76:1

AA Pass AAA Fail

Text on black

3.64:1

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