#663f3f
a dark, soft red · warm · closest name: gray
RGB
102, 63, 63
HSL
0°, 24%, 32%
CMYK
0, 38, 38, 60
Luminance
0.0674
Every format
| HEX | #663f3f |
| RGB | rgb(102, 63, 63) |
| HSL | hsl(0, 24%, 32%) |
| CMYK | cmyk(0%, 38%, 38%, 60%) |
| LAB | lab(31.2 17.1 7.1) |
| LCH | lch(31.2 18.5 22.7) |
| OKLCH | oklch(0.413 0.055 19.7) |
Copy-ready code
/* CSS */
color: #663f3f;
background-color: #663f3f;
/* Tailwind (arbitrary) */
class="text-[#663f3f] bg-[#663f3f]"
/* SCSS */
$brand: #663f3f;
/* SwiftUI */
Color(red: 0.400, green: 0.247, blue: 0.247)
/* Android */
Color.parseColor("#663f3f")Accessibility — WCAG contrast
Aa
#663f3f on white: 8.94:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#663f3f on black: 2.35:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green24.7%
Blue24.7%
CMYK percentages
Cyan0.0%
Magenta38.2%
Yellow38.2%
Key (black)60.0%
Color previews
#663f3f text on a black background
contrast 2.35:1
Card sample
#663f3f text on a white background
contrast 8.94:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #663f3f;
Background color
Panel with #663f3f background
background-color: #663f3f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #663f3f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 63, 63, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 63, 63, 0.45);
Border & gradient
Gradient panel
border: 3px solid #663f3f; background: linear-gradient(135deg, #663f3f, #66593F);