#231218

#231218

Color Values

HEX

#231218

RGB

35, 18, 24

HSL

338.8, 32.1%, 10.4%

HSV

338.8, 48.6%, 13.7%

CMYK

0.0%, 48.6%, 31.4%, 86.3%

OKLCH

0.2084 0.0299 357.3

Properties

Warm Dark Nearest: RAL 5011 Steel Blue

Color Harmonies

Complementary

#231218

#12231D

Analogous

#231221

#231512

#231218

Triadic

#231218

#182312

#121823

Split Complementary

#231218

#122315

#122123

Tetradic

#231218

#212312

#12231D

#151223

Color Blindness Simulation

Original

#231218

Protanopia

#1C1B17

Deuteranopia

#1D1E16

Tritanopia

#221515

Achromatopsia

#161616

CSS Usage

background-color: #231218;
color: #231218;
border-color: #231218;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

50
#F9F5F7
100
#F2E8EC
200
#E7D0D8
300
#D5AEBC
400
#BF8298
500
#A85773
600
#87455C
700
#6C374A
800
#542B3A
900
#3E222C
950
#27161C

Contrast Checker

Text on white

17.93:1

AA Pass AAA Pass

Text on black

1.17:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026