#ac3533
a dark, vivid red · warm · closest name: firebrick
RGB
172, 53, 51
HSL
1°, 54%, 44%
CMYK
0, 69, 70, 33
Luminance
0.1156
Every format
| HEX | #ac3533 |
| RGB | rgb(172, 53, 51) |
| HSL | hsl(1, 54%, 44%) |
| CMYK | cmyk(0%, 69%, 70%, 33%) |
| LAB | lab(40.5 48.2 29.0) |
| LCH | lch(40.5 56.2 31.0) |
| OKLCH | oklch(0.506 0.155 25.5) |
Copy-ready code
/* CSS */
color: #ac3533;
background-color: #ac3533;
/* Tailwind (arbitrary) */
class="text-[#ac3533] bg-[#ac3533]"
/* SCSS */
$brand: #ac3533;
/* SwiftUI */
Color(red: 0.675, green: 0.208, blue: 0.200)
/* Android */
Color.parseColor("#ac3533")Accessibility — WCAG contrast
Aa
#ac3533 on white: 6.34:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ac3533 on black: 3.31:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green20.8%
Blue20.0%
CMYK percentages
Cyan0.0%
Magenta69.2%
Yellow70.3%
Key (black)32.5%
Color previews
#ac3533 text on a black background
contrast 3.31:1
Card sample
#ac3533 text on a white background
contrast 6.34:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac3533;
Background color
Panel with #ac3533 background
background-color: #ac3533;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac3533;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 53, 51, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 53, 51, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac3533; background: linear-gradient(135deg, #ac3533, #AC8633);