#18181F

#18181F

Color Values

HEX

#18181F

RGB

24, 24, 31

HSL

240.0, 12.7%, 10.8%

HSV

240.0, 22.6%, 12.2%

CMYK

22.6%, 22.6%, 0.0%, 87.8%

OKLCH

0.2122 0.0137 285.2

Properties

Cool Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#18181F

#1F1F18

Analogous

#181C1F

#1C181F

#18181F

Triadic

#18181F

#1F1818

#181F18

Split Complementary

#18181F

#1F1C18

#1C1F18

Tetradic

#18181F

#1F181C

#1F1F18

#181F1C

Color Blindness Simulation

Original

#18181F

Protanopia

#18181D

Deuteranopia

#18181D

Tritanopia

#181C1C

Achromatopsia

#191919

CSS Usage

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

Tailwind Shades

50
#F7F7F8
100
#EBEBEF
200
#D7D7E0
300
#BABACA
400
#9595AD
500
#6F6F90
600
#595973
700
#47475C
800
#383848
900
#2B2B36
950
#1B1B22

Contrast Checker

Text on white

17.66:1

AA Pass AAA Pass

Text on black

1.19:1

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