#121815

#121815

Color Values

HEX

#121815

RGB

18, 24, 21

HSL

150.0, 14.3%, 8.2%

HSV

150.0, 25.0%, 9.4%

CMYK

25.0%, 0.0%, 12.5%, 90.6%

OKLCH

0.2016 0.0109 163.6

Properties

Cool Dark Nearest: RAL 9011 Graphite Black

Color Harmonies

Complementary

#121815

#181215

Analogous

#121812

#121818

#121815

Triadic

#121815

#151218

#181512

Split Complementary

#121815

#181218

#181212

Tetradic

#121815

#121218

#181215

#181812

Color Blindness Simulation

Original

#121815

Protanopia

#151516

Deuteranopia

#141416

Tritanopia

#121616

Achromatopsia

#171717

CSS Usage

background-color: #121815;
color: #121815;
border-color: #121815;
Nearest Tailwind: Neutral 900 #171717

Tailwind Shades

50
#F6F8F7
100
#EBEFED
200
#D6E0DB
300
#B9CBC2
400
#93AEA1
500
#6D9280
600
#577566
700
#465D52
800
#374940
900
#2A3730
950
#1B231F

Contrast Checker

Text on white

17.99:1

AA Pass AAA Pass

Text on black

1.17:1

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