#231B18

#231B18

Color Values

HEX

#231B18

RGB

35, 27, 24

HSL

16.4, 18.6%, 11.6%

HSV

16.4, 31.4%, 13.7%

CMYK

0.0%, 22.9%, 31.4%, 86.3%

OKLCH

0.2307 0.014 41.6

Properties

Warm Dark Nearest: RAL 6022 Olive Drab

Color Harmonies

Complementary

#231B18

#182023

Analogous

#23181B

#232118

#231B18

Triadic

#231B18

#18231B

#1B1823

Split Complementary

#231B18

#182321

#181B23

Tetradic

#231B18

#1B2318

#182023

#211823

Color Blindness Simulation

Original

#231B18

Protanopia

#201F19

Deuteranopia

#202119

Tritanopia

#231919

Achromatopsia

#1C1C1C

CSS Usage

background-color: #231B18;
color: #231B18;
border-color: #231B18;
Nearest Tailwind: Stone 900 #1C1917

Tailwind Shades

50
#F9F7F6
100
#F0ECEA
200
#E2D8D5
300
#CDBDB6
400
#B2998F
500
#977568
600
#795D53
700
#614B42
800
#4C3A34
900
#392D28
950
#241C19

Contrast Checker

Text on white

16.92:1

AA Pass AAA Pass

Text on black

1.24:1

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