#040641

#040641

Color Values

HEX

#040641

RGB

4, 6, 65

HSL

238.0, 88.4%, 13.5%

HSV

238.0, 93.8%, 25.5%

CMYK

93.8%, 90.8%, 0.0%, 74.5%

OKLCH

0.1857 0.1067 268.1

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#040641

#413F04

Analogous

#042441

#200441

#040641

Triadic

#040641

#410406

#064104

Split Complementary

#040641

#412004

#244104

Tetradic

#040641

#410424

#413F04

#044120

Color Blindness Simulation

Original

#040641

Protanopia

#050533

Deuteranopia

#05052F

Tritanopia

#042725

Achromatopsia

#0A0A0A

CSS Usage

background-color: #040641;
color: #040641;
border-color: #040641;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F2F2FD
100
#E0E1FB
200
#BCBEFB
300
#8C8FF8
400
#4D53F4
500
#0F16F0
600
#0C12C0
700
#090E9A
800
#070B78
900
#0A0C57
950
#060837

Contrast Checker

Text on white

18.96:1

AA Pass AAA Pass

Text on black

1.11:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

ก.พ. 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

ก.พ. 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

ก.พ. 19, 2026