#0B102C

#0B102C

Color Values

HEX

#0B102C

RGB

11, 16, 44

HSL

230.9, 60.0%, 10.8%

HSV

230.9, 75.0%, 17.3%

CMYK

75.0%, 63.6%, 0.0%, 82.7%

OKLCH

0.1874 0.0566 272.2

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#0B102C

#2C270B

Analogous

#0B212C

#170B2C

#0B102C

Triadic

#0B102C

#2C0B10

#102C0B

Split Complementary

#0B102C

#2C170B

#212C0B

Tetradic

#0B102C

#2C0B21

#2C270B

#0B2C17

Color Blindness Simulation

Original

#0B102C

Protanopia

#0D0D25

Deuteranopia

#0D0C24

Tritanopia

#0B201F

Achromatopsia

#111111

CSS Usage

background-color: #0B102C;
color: #0B102C;
border-color: #0B102C;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F3F5FB
100
#E4E7F6
200
#C6CCF1
300
#9DA8E7
400
#6879D9
500
#334ACC
600
#293BA3
700
#212F83
800
#1A2566
900
#161E4B
950
#0E132F

Contrast Checker

Text on white

18.67:1

AA Pass AAA Pass

Text on black

1.12:1

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