#040A0D

#040A0D

Color Values

HEX

#040A0D

RGB

4, 10, 13

HSL

200.0, 52.9%, 3.3%

HSV

200.0, 69.2%, 5.1%

CMYK

69.2%, 23.1%, 0.0%, 94.9%

OKLCH

0.1386 0.0136 224.8

Properties

Cool Dark Nearest: RAL 9005 Jet Black

Color Harmonies

Complementary

#040A0D

#0D0704

Analogous

#040D0B

#04050D

#040A0D

Triadic

#040A0D

#0D040A

#0A0D04

Split Complementary

#040A0D

#0D0405

#0D0B04

Tetradic

#040A0D

#0B040D

#0D0704

#050D04

Color Blindness Simulation

Original

#040A0D

Protanopia

#07070C

Deuteranopia

#06060C

Tritanopia

#040C0C

Achromatopsia

#090909

CSS Usage

background-color: #040A0D;
color: #040A0D;
border-color: #040A0D;
Nearest Tailwind: Zinc 950 #09090B

Tailwind Shades

50
#F4F8FB
100
#E5F0F5
200
#C8E2EE
300
#A1CDE2
400
#6FB1D3
500
#3C96C3
600
#30789C
700
#26607D
800
#1E4B61
900
#193848
950
#10232D

Contrast Checker

Text on white

19.92:1

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