#183B5B

#183B5B

Color Values

HEX

#183B5B

RGB

24, 59, 91

HSL

208.7, 58.3%, 22.5%

HSV

208.7, 73.6%, 35.7%

CMYK

73.6%, 35.2%, 0.0%, 64.3%

OKLCH

0.3434 0.0694 248.7

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#183B5B

#5B3818

Analogous

#185B59

#18195B

#183B5B

Triadic

#183B5B

#5B183B

#3B5B18

Split Complementary

#183B5B

#5B1819

#5B5918

Tetradic

#183B5B

#59185B

#5B3818

#195B18

Color Blindness Simulation

Original

#183B5B

Protanopia

#272753

Deuteranopia

#252251

Tritanopia

#1A4D4C

Achromatopsia

#363636

CSS Usage

background-color: #183B5B;
color: #183B5B;
border-color: #183B5B;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F4F8FB
100
#E4EEF6
200
#C6DCF0
300
#9EC3E5
400
#6AA3D8
500
#3583CA
600
#2B69A1
700
#225481
800
#1B4165
900
#17324A
950
#0F1F2F

Contrast Checker

Text on white

11.57:1

AA Pass AAA Pass

Text on black

1.82:1

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