#11171C

#11171C

Color Values

HEX

#11171C

RGB

17, 23, 28

HSL

207.3, 24.4%, 8.8%

HSV

207.3, 39.3%, 11.0%

CMYK

39.3%, 17.9%, 0.0%, 89.0%

OKLCH

0.2008 0.0136 243.6

Properties

Cool Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#11171C

#1C1611

Analogous

#111C1B

#11111C

#11171C

Triadic

#11171C

#1C1117

#171C11

Split Complementary

#11171C

#1C1111

#1C1B11

Tetradic

#11171C

#1B111C

#1C1611

#111C11

Color Blindness Simulation

Original

#11171C

Protanopia

#14141B

Deuteranopia

#13131A

Tritanopia

#111A1A

Achromatopsia

#161616

CSS Usage

background-color: #11171C;
color: #11171C;
border-color: #11171C;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

50
#F6F7F9
100
#E9EDF1
200
#D3DCE4
300
#B3C3D1
400
#8AA3B8
500
#60829F
600
#4D687F
700
#3E5366
800
#30414F
900
#26313B
950
#181F25

Contrast Checker

Text on white

18.05:1

AA Pass AAA Pass

Text on black

1.16:1

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