#a4172f
a dark, electric red · warm · closest name: firebrick
RGB
164, 23, 47
HSL
350°, 75%, 37%
CMYK
0, 86, 71, 36
Luminance
0.0871
Every format
| HEX | #a4172f |
| RGB | rgb(164, 23, 47) |
| HSL | hsl(350, 75%, 37%) |
| CMYK | cmyk(0%, 86%, 71%, 36%) |
| LAB | lab(35.4 55.2 24.9) |
| LCH | lch(35.4 60.5 24.3) |
| OKLCH | oklch(0.465 0.173 19.5) |
Copy-ready code
/* CSS */
color: #a4172f;
background-color: #a4172f;
/* Tailwind (arbitrary) */
class="text-[#a4172f] bg-[#a4172f]"
/* SCSS */
$brand: #a4172f;
/* SwiftUI */
Color(red: 0.643, green: 0.090, blue: 0.184)
/* Android */
Color.parseColor("#a4172f")Accessibility — WCAG contrast
Aa
#a4172f on white: 7.66:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#a4172f on black: 2.74:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red64.3%
Green9.0%
Blue18.4%
CMYK percentages
Cyan0.0%
Magenta86.0%
Yellow71.3%
Key (black)35.7%
Color previews
#a4172f text on a black background
contrast 2.74:1
Card sample
#a4172f text on a white background
contrast 7.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #a4172f;
Background color
Panel with #a4172f background
background-color: #a4172f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #a4172f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(164, 23, 47, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(164, 23, 47, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a4172f; background: linear-gradient(135deg, #a4172f, #A45D17);