#c51100
a dark, electric red · warm · closest name: firebrick
RGB
197, 17, 0
HSL
5°, 100%, 39%
CMYK
0, 91, 100, 23
Luminance
0.1227
Every format
| HEX | #c51100 |
| RGB | rgb(197, 17, 0) |
| HSL | hsl(5, 100%, 39%) |
| CMYK | cmyk(0%, 91%, 100%, 23%) |
| LAB | lab(41.6 64.1 55.6) |
| LCH | lch(41.6 84.8 40.9) |
| OKLCH | oklch(0.522 0.208 30.2) |
Copy-ready code
/* CSS */
color: #c51100;
background-color: #c51100;
/* Tailwind (arbitrary) */
class="text-[#c51100] bg-[#c51100]"
/* SCSS */
$brand: #c51100;
/* SwiftUI */
Color(red: 0.773, green: 0.067, blue: 0.000)
/* Android */
Color.parseColor("#c51100")Accessibility — WCAG contrast
Aa
#c51100 on white: 6.08:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#c51100 on black: 3.45:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red77.3%
Green6.7%
Blue0.0%
CMYK percentages
Cyan0.0%
Magenta91.4%
Yellow100.0%
Key (black)22.7%
Color previews
#c51100 text on a black background
contrast 3.45:1
Card sample
#c51100 text on a white background
contrast 6.08:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #c51100;
Background color
Panel with #c51100 background
background-color: #c51100;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #c51100;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(197, 17, 0, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(197, 17, 0, 0.45);
Border & gradient
Gradient panel
border: 3px solid #c51100; background: linear-gradient(135deg, #c51100, #C59400);