#040437

#040437

Color Values

HEX

#040437

RGB

4, 4, 55

HSL

240.0, 86.4%, 11.6%

HSV

240.0, 92.7%, 21.6%

CMYK

92.7%, 92.7%, 0.0%, 78.4%

OKLCH

0.1669 0.0956 269.7

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#040437

#373704

Analogous

#041E37

#1E0437

#040437

Triadic

#040437

#370404

#043704

Split Complementary

#040437

#371E04

#1E3704

Tetradic

#040437

#37041E

#373704

#04371E

Color Blindness Simulation

Original

#040437

Protanopia

#04042B

Deuteranopia

#040428

Tritanopia

#04211F

Achromatopsia

#080808

CSS Usage

background-color: #040437;
color: #040437;
border-color: #040437;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F2F2FD
100
#E0E0FA
200
#BCBCFA
300
#8D8DF7
400
#4F4FF2
500
#1111EE
600
#0E0EBE
700
#0B0B98
800
#090977
900
#0B0B56
950
#070736

Contrast Checker

Text on white

19.49:1

AA Pass AAA Pass

Text on black

1.08:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026