#04172D

#04172D

Color Values

HEX

#04172D

RGB

4, 23, 45

HSL

212.2, 83.7%, 9.6%

HSV

212.2, 91.1%, 17.6%

CMYK

91.1%, 48.9%, 0.0%, 82.4%

OKLCH

0.2026 0.0511 253.0

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#04172D

#2D1A04

Analogous

#042B2D

#05042D

#04172D

Triadic

#04172D

#2D0417

#172D04

Split Complementary

#04172D

#2D0504

#2B2D04

Tetradic

#04172D

#2D042B

#2D1A04

#042D05

Color Blindness Simulation

Original

#04172D

Protanopia

#0C0C28

Deuteranopia

#0B0A26

Tritanopia

#052323

Achromatopsia

#151515

CSS Usage

background-color: #04172D;
color: #04172D;
border-color: #04172D;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F2F7FD
100
#E0ECFA
200
#BDD9F9
300
#8FBEF5
400
#529BF0
500
#1578EA
600
#1160BB
700
#0D4D96
800
#0A3C75
900
#0C2E55
950
#081D36

Contrast Checker

Text on white

18.02:1

AA Pass AAA Pass

Text on black

1.17:1

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