#183121

#183121

Color Values

HEX

#183121

RGB

24, 49, 33

HSL

141.6, 34.2%, 14.3%

HSV

141.6, 51.0%, 19.2%

CMYK

51.0%, 0.0%, 32.7%, 80.8%

OKLCH

0.2874 0.0431 154.6

Properties

Cool Dark Nearest: RAL 6020 Chrome Green

Color Harmonies

Complementary

#183121

#311828

Analogous

#1B3118

#18312D

#183121

Triadic

#183121

#211831

#312118

Split Complementary

#183121

#2D1831

#31181B

Tetradic

#183121

#181B31

#311828

#312D18

Color Blindness Simulation

Original

#183121

Protanopia

#232325

Deuteranopia

#211F26

Tritanopia

#192829

Achromatopsia

#2B2B2B

CSS Usage

background-color: #183121;
color: #183121;
border-color: #183121;
Nearest Tailwind: Emerald 950 #022C22

Tailwind Shades

50
#F5FAF7
100
#E8F2EC
200
#CFE8D8
300
#ADD7BC
400
#80C198
500
#54AB73
600
#43895C
700
#366E4A
800
#2A563A
900
#223F2C
950
#15281C

Contrast Checker

Text on white

14.0:1

AA Pass AAA Pass

Text on black

1.5:1

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