#a81515
a dark, electric red · warm · closest name: firebrick
RGB
168, 21, 21
HSL
0°, 78%, 37%
CMYK
0, 88, 88, 34
Luminance
0.0892
Every format
| HEX | #a81515 |
| RGB | rgb(168, 21, 21) |
| HSL | hsl(0, 78%, 37%) |
| CMYK | cmyk(0%, 88%, 88%, 34%) |
| LAB | lab(35.8 55.8 40.8) |
| LCH | lch(35.8 69.2 36.1) |
| OKLCH | oklch(0.468 0.179 27.8) |
Copy-ready code
/* CSS */
color: #a81515;
background-color: #a81515;
/* Tailwind (arbitrary) */
class="text-[#a81515] bg-[#a81515]"
/* SCSS */
$brand: #a81515;
/* SwiftUI */
Color(red: 0.659, green: 0.082, blue: 0.082)
/* Android */
Color.parseColor("#a81515")Accessibility — WCAG contrast
Aa
#a81515 on white: 7.55:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#a81515 on black: 2.78:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red65.9%
Green8.2%
Blue8.2%
CMYK percentages
Cyan0.0%
Magenta87.5%
Yellow87.5%
Key (black)34.1%
Color previews
#a81515 text on a black background
contrast 2.78:1
Card sample
#a81515 text on a white background
contrast 7.55:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #a81515;
Background color
Panel with #a81515 background
background-color: #a81515;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #a81515;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(168, 21, 21, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(168, 21, 21, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a81515; background: linear-gradient(135deg, #a81515, #A87715);