#870021
a dark, electric red · warm · closest name: maroon
RGB
135, 0, 33
HSL
345°, 100%, 27%
CMYK
0, 100, 76, 47
Luminance
0.0526
Every format
| HEX | #870021 |
| RGB | rgb(135, 0, 33) |
| HSL | hsl(345, 100%, 27%) |
| CMYK | cmyk(0%, 100%, 76%, 47%) |
| LAB | lab(27.5 50.8 22.9) |
| LCH | lch(27.5 55.7 24.3) |
| OKLCH | oklch(0.395 0.158 19.2) |
Copy-ready code
/* CSS */
color: #870021;
background-color: #870021;
/* Tailwind (arbitrary) */
class="text-[#870021] bg-[#870021]"
/* SCSS */
$brand: #870021;
/* SwiftUI */
Color(red: 0.529, green: 0.000, blue: 0.129)
/* Android */
Color.parseColor("#870021")Accessibility — WCAG contrast
Aa
#870021 on white: 10.23:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#870021 on black: 2.05:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red52.9%
Green0.0%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta100.0%
Yellow75.6%
Key (black)47.1%
Color previews
#870021 text on a black background
contrast 2.05:1
Card sample
#870021 text on a white background
contrast 10.23:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #870021;
Background color
Panel with #870021 background
background-color: #870021;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #870021;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(135, 0, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(135, 0, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #870021; background: linear-gradient(135deg, #870021, #873900);