#040310
a deep, vivid blue · warm · closest name: black
RGB
4, 3, 16
HSL
245°, 68%, 4%
CMYK
75, 81, 0, 94
Luminance
0.0013
Every format
| HEX | #040310 |
| RGB | rgb(4, 3, 16) |
| HSL | hsl(245, 68%, 4%) |
| CMYK | cmyk(75%, 81%, 0%, 94%) |
| LAB | lab(1.2 2.2 -5.2) |
| LCH | lch(1.2 5.7 293.0) |
| OKLCH | oklch(0.112 0.034 284.8) |
Copy-ready code
/* CSS */
color: #040310;
background-color: #040310;
/* Tailwind (arbitrary) */
class="text-[#040310] bg-[#040310]"
/* SCSS */
$brand: #040310;
/* SwiftUI */
Color(red: 0.016, green: 0.012, blue: 0.063)
/* Android */
Color.parseColor("#040310")Accessibility — WCAG contrast
Aa
#040310 on white: 20.47:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#040310 on black: 1.03:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green1.2%
Blue6.3%
CMYK percentages
Cyan75.0%
Magenta81.3%
Yellow0.0%
Key (black)93.7%
Color previews
#040310 text on a black background
contrast 1.03:1
Card sample
#040310 text on a white background
contrast 20.47:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #040310;
Background color
Panel with #040310 background
background-color: #040310;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #040310;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 3, 16, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 3, 16, 0.45);
Border & gradient
Gradient panel
border: 3px solid #040310; background: linear-gradient(135deg, #040310, #0D0310);