#0B1C2F

#0B1C2F

Color Values

HEX

#0B1C2F

RGB

11, 28, 47

HSL

211.7, 62.1%, 11.4%

HSV

211.7, 76.6%, 18.4%

CMYK

76.6%, 40.4%, 0.0%, 81.6%

OKLCH

0.2228 0.0438 252.7

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#0B1C2F

#2F1E0B

Analogous

#0B2E2F

#0C0B2F

#0B1C2F

Triadic

#0B1C2F

#2F0B1C

#1C2F0B

Split Complementary

#0B1C2F

#2F0C0B

#2E2F0B

Tetradic

#0B1C2F

#2F0B2E

#2F1E0B

#0B2F0C

Color Blindness Simulation

Original

#0B1C2F

Protanopia

#12132A

Deuteranopia

#111029

Tritanopia

#0C2726

Achromatopsia

#1A1A1A

CSS Usage

background-color: #0B1C2F;
color: #0B1C2F;
border-color: #0B1C2F;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F3F7FB
100
#E4EDF7
200
#C5DAF1
300
#9CC0E8
400
#669DDB
500
#307BCF
600
#2762A5
700
#1F4F84
800
#183E67
900
#152F4C
950
#0D1E30

Contrast Checker

Text on white

17.19:1

AA Pass AAA Pass

Text on black

1.22:1

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