#d10b21
a dark, electric red · warm · closest name: crimson
RGB
209, 11, 33
HSL
353°, 90%, 43%
CMYK
0, 95, 84, 18
Luminance
0.1390
Every format
| HEX | #d10b21 |
| RGB | rgb(209, 11, 33) |
| HSL | hsl(353, 90%, 43%) |
| CMYK | cmyk(0%, 95%, 84%, 18%) |
| LAB | lab(44.1 68.4 45.2) |
| LCH | lch(44.1 81.9 33.5) |
| OKLCH | oklch(0.545 0.217 25.6) |
Copy-ready code
/* CSS */
color: #d10b21;
background-color: #d10b21;
/* Tailwind (arbitrary) */
class="text-[#d10b21] bg-[#d10b21]"
/* SCSS */
$brand: #d10b21;
/* SwiftUI */
Color(red: 0.820, green: 0.043, blue: 0.129)
/* Android */
Color.parseColor("#d10b21")Accessibility — WCAG contrast
Aa
#d10b21 on white: 5.55:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#d10b21 on black: 3.78:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red82.0%
Green4.3%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta94.7%
Yellow84.2%
Key (black)18.0%
Color previews
#d10b21 text on a black background
contrast 3.78:1
Card sample
#d10b21 text on a white background
contrast 5.55:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #d10b21;
Background color
Panel with #d10b21 background
background-color: #d10b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #d10b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(209, 11, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(209, 11, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #d10b21; background: linear-gradient(135deg, #d10b21, #D1790B);