#000311
a deep, electric blue · warm · closest name: black
RGB
0, 3, 17
HSL
229°, 100%, 3%
CMYK
100, 82, 0, 93
Luminance
0.0011
Every format
| HEX | #000311 |
| RGB | rgb(0, 3, 17) |
| HSL | hsl(229, 100%, 3%) |
| CMYK | cmyk(100%, 82%, 0%, 93%) |
| LAB | lab(0.9 1.4 -6.1) |
| LCH | lch(0.9 6.3 282.6) |
| OKLCH | oklch(0.104 0.041 259.3) |
Copy-ready code
/* CSS */
color: #000311;
background-color: #000311;
/* Tailwind (arbitrary) */
class="text-[#000311] bg-[#000311]"
/* SCSS */
$brand: #000311;
/* SwiftUI */
Color(red: 0.000, green: 0.012, blue: 0.067)
/* Android */
Color.parseColor("#000311")Accessibility — WCAG contrast
Aa
#000311 on white: 20.57:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#000311 on black: 1.02:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green1.2%
Blue6.7%
CMYK percentages
Cyan100.0%
Magenta82.4%
Yellow0.0%
Key (black)93.3%
Color previews
#000311 text on a black background
contrast 1.02:1
Card sample
#000311 text on a white background
contrast 20.57:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #000311;
Background color
Panel with #000311 background
background-color: #000311;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #000311;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 3, 17, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 3, 17, 0.45);
Border & gradient
Gradient panel
border: 3px solid #000311; background: linear-gradient(135deg, #000311, #080011);