#a40c2f
a dark, electric red · warm · closest name: firebrick
RGB
164, 12, 47
HSL
346°, 86%, 35%
CMYK
0, 93, 71, 36
Luminance
0.0836
Every format
| HEX | #a40c2f |
| RGB | rgb(164, 12, 47) |
| HSL | hsl(346, 86%, 35%) |
| CMYK | cmyk(0%, 93%, 71%, 36%) |
| LAB | lab(34.7 57.2 24.1) |
| LCH | lch(34.7 62.0 22.9) |
| OKLCH | oklch(0.460 0.178 18.2) |
Copy-ready code
/* CSS */
color: #a40c2f;
background-color: #a40c2f;
/* Tailwind (arbitrary) */
class="text-[#a40c2f] bg-[#a40c2f]"
/* SCSS */
$brand: #a40c2f;
/* SwiftUI */
Color(red: 0.643, green: 0.047, blue: 0.184)
/* Android */
Color.parseColor("#a40c2f")Accessibility — WCAG contrast
Aa
#a40c2f on white: 7.86:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#a40c2f on black: 2.67:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red64.3%
Green4.7%
Blue18.4%
CMYK percentages
Cyan0.0%
Magenta92.7%
Yellow71.3%
Key (black)35.7%
Color previews
#a40c2f text on a black background
contrast 2.67:1
Card sample
#a40c2f text on a white background
contrast 7.86:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #a40c2f;
Background color
Panel with #a40c2f background
background-color: #a40c2f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #a40c2f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(164, 12, 47, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(164, 12, 47, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a40c2f; background: linear-gradient(135deg, #a40c2f, #A44E0C);