#330000
a deep, electric red · warm · closest name: black
RGB
51, 0, 0
HSL
0°, 100%, 10%
CMYK
0, 100, 100, 80
Luminance
0.0070
Every format
| HEX | #330000 |
| RGB | rgb(51, 0, 0) |
| HSL | hsl(0, 100%, 10%) |
| CMYK | cmyk(0%, 100%, 100%, 80%) |
| LAB | lab(6.4 25.2 10.1) |
| LCH | lch(6.4 27.1 21.8) |
| OKLCH | oklch(0.202 0.083 29.2) |
Copy-ready code
/* CSS */
color: #330000;
background-color: #330000;
/* Tailwind (arbitrary) */
class="text-[#330000] bg-[#330000]"
/* SCSS */
$brand: #330000;
/* SwiftUI */
Color(red: 0.200, green: 0.000, blue: 0.000)
/* Android */
Color.parseColor("#330000")Accessibility — WCAG contrast
Aa
#330000 on white: 18.41:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#330000 on black: 1.14:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green0.0%
Blue0.0%
CMYK percentages
Cyan0.0%
Magenta100.0%
Yellow100.0%
Key (black)80.0%
Color previews
#330000 text on a black background
contrast 1.14:1
Card sample
#330000 text on a white background
contrast 18.41:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #330000;
Background color
Panel with #330000 background
background-color: #330000;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #330000;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 0, 0, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 0, 0, 0.45);
Border & gradient
Gradient panel
border: 3px solid #330000; background: linear-gradient(135deg, #330000, #332200);