#183559

#183559

Color Values

HEX

#183559

RGB

24, 53, 89

HSL

213.2, 57.5%, 22.2%

HSV

213.2, 73.0%, 34.9%

CMYK

73.0%, 40.4%, 0.0%, 65.1%

OKLCH

0.3264 0.0732 255.0

Properties

Cool Dark Nearest: RAL 5026 Pearl Night Blue

Color Harmonies

Complementary

#183559

#593C18

Analogous

#185659

#1C1859

#183559

Triadic

#183559

#591835

#355918

Split Complementary

#183559

#591C18

#565918

Tetradic

#183559

#591856

#593C18

#18591C

Color Blindness Simulation

Original

#183559

Protanopia

#252550

Deuteranopia

#23214E

Tritanopia

#194948

Achromatopsia

#313131

CSS Usage

background-color: #183559;
color: #183559;
border-color: #183559;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F4F7FB
100
#E4ECF6
200
#C7D9F0
300
#9FBEE5
400
#6A9BD7
500
#3678C9
600
#2B60A1
700
#234D81
800
#1B3C64
900
#172E4A
950
#0F1D2E

Contrast Checker

Text on white

12.41:1

AA Pass AAA Pass

Text on black

1.69:1

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