#cb0010
a dark, electric red · warm · closest name: firebrick
RGB
203, 0, 16
HSL
355°, 100%, 40%
CMYK
0, 100, 92, 20
Luminance
0.1273
Every format
| HEX | #cb0010 |
| RGB | rgb(203, 0, 16) |
| HSL | hsl(355, 100%, 40%) |
| CMYK | cmyk(0%, 100%, 92%, 20%) |
| LAB | lab(42.4 67.6 51.2) |
| LCH | lch(42.4 84.8 37.1) |
| OKLCH | oklch(0.529 0.216 27.7) |
Copy-ready code
/* CSS */
color: #cb0010;
background-color: #cb0010;
/* Tailwind (arbitrary) */
class="text-[#cb0010] bg-[#cb0010]"
/* SCSS */
$brand: #cb0010;
/* SwiftUI */
Color(red: 0.796, green: 0.000, blue: 0.063)
/* Android */
Color.parseColor("#cb0010")Accessibility — WCAG contrast
Aa
#cb0010 on white: 5.92:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#cb0010 on black: 3.55:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red79.6%
Green0.0%
Blue6.3%
CMYK percentages
Cyan0.0%
Magenta100.0%
Yellow92.1%
Key (black)20.4%
Color previews
#cb0010 text on a black background
contrast 3.55:1
Card sample
#cb0010 text on a white background
contrast 5.92:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #cb0010;
Background color
Panel with #cb0010 background
background-color: #cb0010;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #cb0010;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(203, 0, 16, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(203, 0, 16, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cb0010; background: linear-gradient(135deg, #cb0010, #CB7700);