#040b09
a deep, vivid cyan · cool · closest name: black
RGB
4, 11, 9
HSL
163°, 47%, 3%
CMYK
64, 0, 18, 96
Luminance
0.0028
Every format
| HEX | #040b09 |
| RGB | rgb(4, 11, 9) |
| HSL | hsl(163, 47%, 3%) |
| CMYK | cmyk(64%, 0%, 18%, 96%) |
| LAB | lab(2.6 -2.1 0.1) |
| LCH | lch(2.6 2.1 176.8) |
| OKLCH | oklch(0.140 0.014 177.5) |
Copy-ready code
/* CSS */
color: #040b09;
background-color: #040b09;
/* Tailwind (arbitrary) */
class="text-[#040b09] bg-[#040b09]"
/* SCSS */
$brand: #040b09;
/* SwiftUI */
Color(red: 0.016, green: 0.043, blue: 0.035)
/* Android */
Color.parseColor("#040b09")Accessibility — WCAG contrast
Aa
#040b09 on white: 19.87:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#040b09 on black: 1.06:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green4.3%
Blue3.5%
CMYK percentages
Cyan63.6%
Magenta0.0%
Yellow18.2%
Key (black)95.7%
Color previews
#040b09 text on a black background
contrast 1.06:1
Card sample
#040b09 text on a white background
contrast 19.87:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #040b09;
Background color
Panel with #040b09 background
background-color: #040b09;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #040b09;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 11, 9, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 11, 9, 0.45);
Border & gradient
Gradient panel
border: 3px solid #040b09; background: linear-gradient(135deg, #040b09, #04080B);