#647b21
a dark, vivid green · cool · closest name: olivedrab
RGB
100, 123, 33
HSL
75°, 58%, 31%
CMYK
19, 0, 73, 52
Luminance
0.1699
Every format
| HEX | #647b21 |
| RGB | rgb(100, 123, 33) |
| HSL | hsl(75, 58%, 31%) |
| CMYK | cmyk(19%, 0%, 73%, 52%) |
| LAB | lab(48.2 -21.9 44.0) |
| LCH | lch(48.2 49.1 116.4) |
| OKLCH | oklch(0.546 0.117 122.9) |
Copy-ready code
/* CSS */
color: #647b21;
background-color: #647b21;
/* Tailwind (arbitrary) */
class="text-[#647b21] bg-[#647b21]"
/* SCSS */
$brand: #647b21;
/* SwiftUI */
Color(red: 0.392, green: 0.482, blue: 0.129)
/* Android */
Color.parseColor("#647b21")Accessibility — WCAG contrast
Aa
#647b21 on white: 4.78:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#647b21 on black: 4.40:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green48.2%
Blue12.9%
CMYK percentages
Cyan18.7%
Magenta0.0%
Yellow73.2%
Key (black)51.8%
Color previews
#647b21 text on a black background
contrast 4.40:1
Card sample
#647b21 text on a white background
contrast 4.78:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #647b21;
Background color
Panel with #647b21 background
background-color: #647b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #647b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 123, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 123, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #647b21; background: linear-gradient(135deg, #647b21, #287B21);