#818a21
a dark, vivid yellow · cool · closest name: olive
RGB
129, 138, 33
HSL
65°, 61%, 34%
CMYK
7, 0, 76, 46
Luminance
0.2295
Every format
| HEX | #818a21 |
| RGB | rgb(129, 138, 33) |
| HSL | hsl(65, 61%, 34%) |
| CMYK | cmyk(7%, 0%, 76%, 46%) |
| LAB | lab(55.0 -16.8 51.3) |
| LCH | lch(55.0 54.0 108.1) |
| OKLCH | oklch(0.607 0.124 114.5) |
Copy-ready code
/* CSS */
color: #818a21;
background-color: #818a21;
/* Tailwind (arbitrary) */
class="text-[#818a21] bg-[#818a21]"
/* SCSS */
$brand: #818a21;
/* SwiftUI */
Color(red: 0.506, green: 0.541, blue: 0.129)
/* Android */
Color.parseColor("#818a21")Accessibility — WCAG contrast
Aa
#818a21 on white: 3.76:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#818a21 on black: 5.59:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red50.6%
Green54.1%
Blue12.9%
CMYK percentages
Cyan6.5%
Magenta0.0%
Yellow76.1%
Key (black)45.9%
Color previews
#818a21 text on a black background
contrast 5.59:1
Card sample
#818a21 text on a white background
contrast 3.76:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #818a21;
Background color
Panel with #818a21 background
background-color: #818a21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #818a21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(129, 138, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(129, 138, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #818a21; background: linear-gradient(135deg, #818a21, #3B8A21);