#040B51

#040B51

Color Values

HEX

#040B51

RGB

4, 11, 81

HSL

234.5, 90.6%, 16.7%

HSV

234.5, 95.1%, 31.8%

CMYK

95.1%, 86.4%, 0.0%, 68.2%

OKLCH

0.2163 0.1229 266.6

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#040B51

#514A04

Analogous

#043251

#240451

#040B51

Triadic

#040B51

#51040B

#0B5104

Split Complementary

#040B51

#512404

#325104

Tetradic

#040B51

#510432

#514A04

#045124

Color Blindness Simulation

Original

#040B51

Protanopia

#070740

Deuteranopia

#07063C

Tritanopia

#043330

Achromatopsia

#0F0F0F

CSS Usage

background-color: #040B51;
color: #040B51;
border-color: #040B51;
Nearest Tailwind: Violet 950 #2E1065

Tailwind Shades

50
#F1F3FD
100
#DFE2FB
200
#BBC1FC
300
#8A95F9
400
#4B5BF6
500
#0C21F3
600
#0A1BC2
700
#08159C
800
#06117A
900
#091058
950
#060A38

Contrast Checker

Text on white

17.92:1

AA Pass AAA Pass

Text on black

1.17:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026