#183A45

#183A45

Color Values

HEX

#183A45

RGB

24, 58, 69

HSL

194.7, 48.4%, 18.2%

HSV

194.7, 65.2%, 27.1%

CMYK

65.2%, 15.9%, 0.0%, 72.9%

OKLCH

0.3283 0.0438 221.8

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#183A45

#452318

Analogous

#184539

#182345

#183A45

Triadic

#183A45

#45183A

#3A4518

Split Complementary

#183A45

#451823

#453918

Tetradic

#183A45

#391845

#452318

#234518

Color Blindness Simulation

Original

#183A45

Protanopia

#272742

Deuteranopia

#252242

Tritanopia

#1A4040

Achromatopsia

#343434

CSS Usage

background-color: #183A45;
color: #183A45;
border-color: #183A45;
Nearest Tailwind: Cyan 950 #083344

Tailwind Shades

50
#F4F9FA
100
#E6F1F4
200
#CAE4ED
300
#A4D1DF
400
#73B8CE
500
#429FBD
600
#357F97
700
#2A6679
800
#214F5F
900
#1B3B46
950
#11252C

Contrast Checker

Text on white

12.14:1

AA Pass AAA Pass

Text on black

1.73:1

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