#040644

#040644

Color Values

HEX

#040644

RGB

4, 6, 68

HSL

238,1, 88,9%, 14,1%

HSV

238,1, 94,1%, 26,7%

CMYK

94,1%, 91,2%, 0,0%, 73,3%

OKLCH

0,19 0,1108 267,9

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#040644

#444204

Analogous

#042644

#220444

#040644

Triadic

#040644

#440406

#064404

Split Complementary

#040644

#442204

#264404

Tetradic

#040644

#440426

#444204

#044422

Color Blindness Simulation

Original

#040644

Protanopia

#050535

Deuteranopia

#050531

Tritanopia

#042927

Achromatopsia

#0A0A0A

CSS Usage

background-color: #040644;
color: #040644;
border-color: #040644;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F2F2FD
100
#E0E1FB
200
#BCBEFB
300
#8B8FF8
400
#4D52F5
500
#0E15F1
600
#0B11C1
700
#090E9A
800
#070B78
900
#0A0C57
950
#060837

Contrast Checker

Text on white

18,84:1

AA Pass AAA Pass

Text on black

1,11:1

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