#04285C

#04285C

Color Values

HEX

#04285C

RGB

4, 40, 92

HSL

215.5, 91.7%, 18.8%

HSV

215.5, 95.7%, 36.1%

CMYK

95.7%, 56.5%, 0.0%, 63.9%

OKLCH

0.2885 0.1016 258.6

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#04285C

#5C3804

Analogous

#04545C

#0C045C

#04285C

Triadic

#04285C

#5C0428

#285C04

Split Complementary

#04285C

#5C0C04

#545C04

Tetradic

#04285C

#5C0454

#5C3804

#045C0C

Color Blindness Simulation

Original

#04285C

Protanopia

#14144F

Deuteranopia

#120F4C

Tritanopia

#064543

Achromatopsia

#242424

CSS Usage

background-color: #04285C;
color: #04285C;
border-color: #04285C;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F1F6FD
100
#DFEBFB
200
#BBD5FC
300
#8AB8FA
400
#4A91F7
500
#0B6AF4
600
#0855C4
700
#07449C
800
#05357A
900
#082958
950
#051A38

Contrast Checker

Text on white

14.35:1

AA Pass AAA Pass

Text on black

1.46:1

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