#c51621
a dark, electric red · warm · closest name: firebrick
RGB
197, 22, 33
HSL
356°, 80%, 43%
CMYK
0, 89, 83, 23
Luminance
0.1255
Every format
| HEX | #c51621 |
| RGB | rgb(197, 22, 33) |
| HSL | hsl(356, 80%, 43%) |
| CMYK | cmyk(0%, 89%, 83%, 23%) |
| LAB | lab(42.1 63.8 42.4) |
| LCH | lch(42.1 76.6 33.6) |
| OKLCH | oklch(0.526 0.203 26.0) |
Copy-ready code
/* CSS */
color: #c51621;
background-color: #c51621;
/* Tailwind (arbitrary) */
class="text-[#c51621] bg-[#c51621]"
/* SCSS */
$brand: #c51621;
/* SwiftUI */
Color(red: 0.773, green: 0.086, blue: 0.129)
/* Android */
Color.parseColor("#c51621")Accessibility — WCAG contrast
Aa
#c51621 on white: 5.98:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#c51621 on black: 3.51:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red77.3%
Green8.6%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta88.8%
Yellow83.2%
Key (black)22.7%
Color previews
#c51621 text on a black background
contrast 3.51:1
Card sample
#c51621 text on a white background
contrast 5.98:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #c51621;
Background color
Panel with #c51621 background
background-color: #c51621;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #c51621;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(197, 22, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(197, 22, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #c51621; background: linear-gradient(135deg, #c51621, #C57F16);