#818c21
a dark, vivid yellow · cool · closest name: olive
RGB
129, 140, 33
HSL
66°, 62%, 34%
CMYK
8, 0, 76, 45
Luminance
0.2353
Every format
| HEX | #818c21 |
| RGB | rgb(129, 140, 33) |
| HSL | hsl(66, 62%, 34%) |
| CMYK | cmyk(8%, 0%, 76%, 45%) |
| LAB | lab(55.6 -17.9 51.9) |
| LCH | lch(55.6 54.9 109.0) |
| OKLCH | oklch(0.611 0.127 115.4) |
Copy-ready code
/* CSS */
color: #818c21;
background-color: #818c21;
/* Tailwind (arbitrary) */
class="text-[#818c21] bg-[#818c21]"
/* SCSS */
$brand: #818c21;
/* SwiftUI */
Color(red: 0.506, green: 0.549, blue: 0.129)
/* Android */
Color.parseColor("#818c21")Accessibility — WCAG contrast
Aa
#818c21 on white: 3.68:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#818c21 on black: 5.71:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red50.6%
Green54.9%
Blue12.9%
CMYK percentages
Cyan7.9%
Magenta0.0%
Yellow76.4%
Key (black)45.1%
Color previews
#818c21 text on a black background
contrast 5.71:1
Card sample
#818c21 text on a white background
contrast 3.68:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #818c21;
Background color
Panel with #818c21 background
background-color: #818c21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #818c21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(129, 140, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(129, 140, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #818c21; background: linear-gradient(135deg, #818c21, #3A8C21);