#181518

#181518

Color Values

HEX

#181518

RGB

24, 21, 24

HSL

300.0, 6.7%, 8.8%

HSV

300.0, 12.5%, 9.4%

CMYK

0.0%, 12.5%, 0.0%, 90.6%

OKLCH

0.2006 0.0075 325.9

Properties

Warm Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#181518

#151815

Analogous

#161518

#181516

#181518

Triadic

#181518

#181815

#151818

Split Complementary

#181518

#161815

#151816

Tetradic

#181518

#181615

#151815

#151618

Color Blindness Simulation

Original

#181518

Protanopia

#171717

Deuteranopia

#171717

Tritanopia

#181717

Achromatopsia

#161616

CSS Usage

background-color: #181518;
color: #181518;
border-color: #181518;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

50
#F8F7F8
100
#EEECEE
200
#DED9DE
300
#C6BEC6
400
#A79AA7
500
#887788
600
#6D5F6D
700
#574C57
800
#443B44
900
#332E33
950
#201D20

Contrast Checker

Text on white

18.11:1

AA Pass AAA Pass

Text on black

1.16:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026