#ac0017
a dark, electric red · warm · closest name: firebrick
RGB
172, 0, 23
HSL
352°, 100%, 34%
CMYK
0, 100, 87, 33
Luminance
0.0883
Every format
| HEX | #ac0017 |
| RGB | rgb(172, 0, 23) |
| HSL | hsl(352, 100%, 34%) |
| CMYK | cmyk(0%, 100%, 87%, 33%) |
| LAB | lab(35.7 60.0 40.0) |
| LCH | lch(35.7 72.0 33.7) |
| OKLCH | oklch(0.469 0.190 25.6) |
Copy-ready code
/* CSS */
color: #ac0017;
background-color: #ac0017;
/* Tailwind (arbitrary) */
class="text-[#ac0017] bg-[#ac0017]"
/* SCSS */
$brand: #ac0017;
/* SwiftUI */
Color(red: 0.675, green: 0.000, blue: 0.090)
/* Android */
Color.parseColor("#ac0017")Accessibility — WCAG contrast
Aa
#ac0017 on white: 7.59:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#ac0017 on black: 2.77:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green0.0%
Blue9.0%
CMYK percentages
Cyan0.0%
Magenta100.0%
Yellow86.6%
Key (black)32.5%
Color previews
#ac0017 text on a black background
contrast 2.77:1
Card sample
#ac0017 text on a white background
contrast 7.59:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac0017;
Background color
Panel with #ac0017 background
background-color: #ac0017;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac0017;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 0, 23, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 0, 23, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac0017; background: linear-gradient(135deg, #ac0017, #AC5C00);