#040738

#040738

Color Values

HEX

#040738

RGB

4, 7, 56

HSL

236.5, 86.7%, 11.8%

HSV

236.5, 92.9%, 22.0%

CMYK

92.9%, 87.5%, 0.0%, 78.0%

OKLCH

0.1751 0.0926 268.7

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#040738

#383504

Analogous

#042138

#1B0438

#040738

Triadic

#040738

#380407

#073804

Split Complementary

#040738

#381B04

#213804

Tetradic

#040738

#380421

#383504

#04381B

Color Blindness Simulation

Original

#040738

Protanopia

#05052C

Deuteranopia

#050529

Tritanopia

#042321

Achromatopsia

#0A0A0A

CSS Usage

background-color: #040738;
color: #040738;
border-color: #040738;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F2F2FD
100
#E0E2FA
200
#BCC0FA
300
#8D93F7
400
#4F58F2
500
#111EEE
600
#0E18BE
700
#0B1398
800
#080F77
900
#0B0F56
950
#070A36

Contrast Checker

Text on white

19.22:1

AA Pass AAA Pass

Text on black

1.09:1

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