#b03b21
a dark, vivid red · warm · closest name: firebrick
RGB
176, 59, 33
HSL
11°, 68%, 41%
CMYK
0, 67, 81, 31
Luminance
0.1247
Every format
| HEX | #b03b21 |
| RGB | rgb(176, 59, 33) |
| HSL | hsl(11, 68%, 41%) |
| CMYK | cmyk(0%, 67%, 81%, 31%) |
| LAB | lab(42.0 46.3 40.9) |
| LCH | lch(42.0 61.8 41.4) |
| OKLCH | oklch(0.517 0.157 34.0) |
Copy-ready code
/* CSS */
color: #b03b21;
background-color: #b03b21;
/* Tailwind (arbitrary) */
class="text-[#b03b21] bg-[#b03b21]"
/* SCSS */
$brand: #b03b21;
/* SwiftUI */
Color(red: 0.690, green: 0.231, blue: 0.129)
/* Android */
Color.parseColor("#b03b21")Accessibility — WCAG contrast
Aa
#b03b21 on white: 6.01:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#b03b21 on black: 3.49:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red69.0%
Green23.1%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta66.5%
Yellow81.3%
Key (black)31.0%
Color previews
#b03b21 text on a black background
contrast 3.49:1
Card sample
#b03b21 text on a white background
contrast 6.01:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b03b21;
Background color
Panel with #b03b21 background
background-color: #b03b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b03b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(176, 59, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(176, 59, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b03b21; background: linear-gradient(135deg, #b03b21, #B09A21);