#b00321
a dark, electric red · warm · closest name: firebrick
RGB
176, 3, 33
HSL
350°, 97%, 35%
CMYK
0, 98, 81, 31
Luminance
0.0941
Every format
| HEX | #b00321 |
| RGB | rgb(176, 3, 33) |
| HSL | hsl(350, 97%, 35%) |
| CMYK | cmyk(0%, 98%, 81%, 31%) |
| LAB | lab(36.8 60.9 35.7) |
| LCH | lch(36.8 70.6 30.4) |
| OKLCH | oklch(0.479 0.192 23.5) |
Copy-ready code
/* CSS */
color: #b00321;
background-color: #b00321;
/* Tailwind (arbitrary) */
class="text-[#b00321] bg-[#b00321]"
/* SCSS */
$brand: #b00321;
/* SwiftUI */
Color(red: 0.690, green: 0.012, blue: 0.129)
/* Android */
Color.parseColor("#b00321")Accessibility — WCAG contrast
Aa
#b00321 on white: 7.29:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#b00321 on black: 2.88:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red69.0%
Green1.2%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta98.3%
Yellow81.3%
Key (black)31.0%
Color previews
#b00321 text on a black background
contrast 2.88:1
Card sample
#b00321 text on a white background
contrast 7.29:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b00321;
Background color
Panel with #b00321 background
background-color: #b00321;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b00321;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(176, 3, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(176, 3, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b00321; background: linear-gradient(135deg, #b00321, #B05803);