#181D2D

#181D2D

Color Values

HEX

#181D2D

RGB

24, 29, 45

HSL

225.7, 30.4%, 13.5%

HSV

225.7, 46.7%, 17.6%

CMYK

46.7%, 35.6%, 0.0%, 82.4%

OKLCH

0.2338 0.0319 270.5

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#181D2D

#2D2818

Analogous

#18272D

#1D182D

#181D2D

Triadic

#181D2D

#2D181D

#1D2D18

Split Complementary

#181D2D

#2D1D18

#272D18

Tetradic

#181D2D

#2D1827

#2D2818

#182D1D

Color Blindness Simulation

Original

#181D2D

Protanopia

#1A1A29

Deuteranopia

#1A1928

Tritanopia

#182625

Achromatopsia

#1D1D1D

CSS Usage

background-color: #181D2D;
color: #181D2D;
border-color: #181D2D;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F5F6F9
100
#E9EBF2
200
#D0D6E6
300
#AFB8D4
400
#8492BD
500
#596BA6
600
#475685
700
#39456A
800
#2C3653
900
#232A3E
950
#161A27

Contrast Checker

Text on white

16.77:1

AA Pass AAA Pass

Text on black

1.25:1

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