#040B10

#040B10

Color Values

HEX

#040B10

RGB

4, 11, 16

HSL

205.0, 60.0%, 3.9%

HSV

205.0, 75.0%, 6.3%

CMYK

75.0%, 31.3%, 0.0%, 93.7%

OKLCH

0.1437 0.0171 235.2

Properties

Cool Dark Nearest: RAL 9005 Jet Black

Color Harmonies

Complementary

#040B10

#100904

Analogous

#04100F

#040510

#040B10

Triadic

#040B10

#10040B

#0B1004

Split Complementary

#040B10

#100405

#100F04

Tetradic

#040B10

#0F0410

#100904

#051004

Color Blindness Simulation

Original

#040B10

Protanopia

#07070F

Deuteranopia

#07060E

Tritanopia

#040E0E

Achromatopsia

#0A0A0A

CSS Usage

background-color: #040B10;
color: #040B10;
border-color: #040B10;
Nearest Tailwind: Zinc 950 #09090B

Tailwind Shades

50
#F3F8FB
100
#E4EFF6
200
#C6DFF1
300
#9DC8E7
400
#68AAD9
500
#338CCC
600
#2970A3
700
#215A83
800
#1A4666
900
#16354B
950
#0E212F

Contrast Checker

Text on white

19.8:1

AA Pass AAA Pass

Text on black

1.06:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026