#040B04

#040B04

Color Values

HEX

#040B04

RGB

4, 11, 4

HSL

120.0, 46.7%, 2.9%

HSV

120.0, 63.6%, 4.3%

CMYK

63.6%, 0.0%, 63.6%, 95.7%

OKLCH

0.1376 0.0228 144.2

Properties

Cool Dark Nearest: RAL 9005 Jet Black

Color Harmonies

Complementary

#040B04

#0B040B

Analogous

#070B04

#040B07

#040B04

Triadic

#040B04

#04040B

#0B0404

Split Complementary

#040B04

#07040B

#0B0407

Tetradic

#040B04

#04070B

#0B040B

#0B0704

Color Blindness Simulation

Original

#040B04

Protanopia

#070706

Deuteranopia

#070606

Tritanopia

#040707

Achromatopsia

#090909

CSS Usage

background-color: #040B04;
color: #040B04;
border-color: #040B04;
Nearest Tailwind: Neutral 950 #0A0A0A

Tailwind Shades

50
#F4FAF4
100
#E6F4E6
200
#CBECCB
300
#A5DEA5
400
#75CD75
500
#44BB44
600
#369636
700
#2B782B
800
#225E22
900
#1C451C
950
#122B12

Contrast Checker

Text on white

19.91:1

AA Pass AAA Pass

Text on black

1.05:1

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