#660b21
a deep, electric red · warm · closest name: maroon
RGB
102, 11, 33
HSL
346°, 81%, 22%
CMYK
0, 89, 68, 60
Luminance
0.0317
Every format
| HEX | #660b21 |
| RGB | rgb(102, 11, 33) |
| HSL | hsl(346, 81%, 22%) |
| CMYK | cmyk(0%, 89%, 68%, 60%) |
| LAB | lab(20.7 39.4 12.9) |
| LCH | lch(20.7 41.4 18.2) |
| OKLCH | oklch(0.332 0.122 14.8) |
Copy-ready code
/* CSS */
color: #660b21;
background-color: #660b21;
/* Tailwind (arbitrary) */
class="text-[#660b21] bg-[#660b21]"
/* SCSS */
$brand: #660b21;
/* SwiftUI */
Color(red: 0.400, green: 0.043, blue: 0.129)
/* Android */
Color.parseColor("#660b21")Accessibility — WCAG contrast
Aa
#660b21 on white: 12.85:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#660b21 on black: 1.63:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green4.3%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta89.2%
Yellow67.6%
Key (black)60.0%
Color previews
#660b21 text on a black background
contrast 1.63:1
Card sample
#660b21 text on a white background
contrast 12.85:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #660b21;
Background color
Panel with #660b21 background
background-color: #660b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #660b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 11, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 11, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #660b21; background: linear-gradient(135deg, #660b21, #66320B);