#043759

#043759

Color Values

HEX

#043759

RGB

4, 55, 89

HSL

204.0, 91.4%, 18.2%

HSV

204.0, 95.5%, 34.9%

CMYK

95.5%, 38.2%, 0.0%, 65.1%

OKLCH

0.3252 0.0781 244.8

Properties

Cool Dark Nearest: RAL 5010 Gentian Blue

Color Harmonies

Complementary

#043759

#592604

Analogous

#045950

#040C59

#043759

Triadic

#043759

#590437

#375904

Split Complementary

#043759

#59040C

#595004

Tetradic

#043759

#500459

#592604

#0C5904

Color Blindness Simulation

Original

#043759

Protanopia

#1A1B51

Deuteranopia

#17134F

Tritanopia

#074A49

Achromatopsia

#2F2F2F

CSS Usage

background-color: #043759;
color: #043759;
border-color: #043759;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F1F9FD
100
#DFF0FB
200
#BBE2FC
300
#8ACDFA
400
#4AB2F7
500
#0B97F4
600
#0979C3
700
#07619C
800
#054B7A
900
#093858
950
#052438

Contrast Checker

Text on white

12.38:1

AA Pass AAA Pass

Text on black

1.7:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026