#ac4039
a dark, vivid red · warm · closest name: firebrick
RGB
172, 64, 57
HSL
4°, 50%, 45%
CMYK
0, 63, 67, 33
Luminance
0.1273
Every format
| HEX | #ac4039 |
| RGB | rgb(172, 64, 57) |
| HSL | hsl(4, 50%, 45%) |
| CMYK | cmyk(0%, 63%, 67%, 33%) |
| LAB | lab(42.4 43.8 27.6) |
| LCH | lch(42.4 51.8 32.2) |
| OKLCH | oklch(0.520 0.143 26.9) |
Copy-ready code
/* CSS */
color: #ac4039;
background-color: #ac4039;
/* Tailwind (arbitrary) */
class="text-[#ac4039] bg-[#ac4039]"
/* SCSS */
$brand: #ac4039;
/* SwiftUI */
Color(red: 0.675, green: 0.251, blue: 0.224)
/* Android */
Color.parseColor("#ac4039")Accessibility — WCAG contrast
Aa
#ac4039 on white: 5.92:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ac4039 on black: 3.55:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green25.1%
Blue22.4%
CMYK percentages
Cyan0.0%
Magenta62.8%
Yellow66.9%
Key (black)32.5%
Color previews
#ac4039 text on a black background
contrast 3.55:1
Card sample
#ac4039 text on a white background
contrast 5.92:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac4039;
Background color
Panel with #ac4039 background
background-color: #ac4039;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac4039;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 64, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 64, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac4039; background: linear-gradient(135deg, #ac4039, #AC8D39);