#043559

#043559

Color Values

HEX

#043559

RGB

4, 53, 89

HSL

205.4, 91.4%, 18.2%

HSV

205.4, 95.5%, 34.9%

CMYK

95.5%, 40.4%, 0.0%, 65.1%

OKLCH

0.3198 0.0803 247.0

Properties

Cool Dark Nearest: RAL 5010 Gentian Blue

Color Harmonies

Complementary

#043559

#592804

Analogous

#045952

#040A59

#043559

Triadic

#043559

#590435

#355904

Split Complementary

#043559

#59040A

#595204

Tetradic

#043559

#520459

#592804

#0A5904

Color Blindness Simulation

Original

#043559

Protanopia

#191A50

Deuteranopia

#16134E

Tritanopia

#064948

Achromatopsia

#2D2D2D

CSS Usage

background-color: #043559;
color: #043559;
border-color: #043559;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F1F8FD
100
#DFEFFB
200
#BBE0FC
300
#8ACAFA
400
#4AAEF7
500
#0B91F4
600
#0974C3
700
#075D9C
800
#05497A
900
#093758
950
#052238

Contrast Checker

Text on white

12.66:1

AA Pass AAA Pass

Text on black

1.66:1

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