#818f21
a dark, vivid yellow · cool · closest name: olive
RGB
129, 143, 33
HSL
68°, 63%, 35%
CMYK
10, 0, 77, 44
Luminance
0.2442
Every format
| HEX | #818f21 |
| RGB | rgb(129, 143, 33) |
| HSL | hsl(68, 63%, 35%) |
| CMYK | cmyk(10%, 0%, 77%, 44%) |
| LAB | lab(56.5 -19.4 52.7) |
| LCH | lch(56.5 56.2 110.2) |
| OKLCH | oklch(0.618 0.130 116.8) |
Copy-ready code
/* CSS */
color: #818f21;
background-color: #818f21;
/* Tailwind (arbitrary) */
class="text-[#818f21] bg-[#818f21]"
/* SCSS */
$brand: #818f21;
/* SwiftUI */
Color(red: 0.506, green: 0.561, blue: 0.129)
/* Android */
Color.parseColor("#818f21")Accessibility — WCAG contrast
Aa
#818f21 on white: 3.57:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#818f21 on black: 5.88:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red50.6%
Green56.1%
Blue12.9%
CMYK percentages
Cyan9.8%
Magenta0.0%
Yellow76.9%
Key (black)43.9%
Color previews
#818f21 text on a black background
contrast 5.88:1
Card sample
#818f21 text on a white background
contrast 3.57:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #818f21;
Background color
Panel with #818f21 background
background-color: #818f21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #818f21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(129, 143, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(129, 143, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #818f21; background: linear-gradient(135deg, #818f21, #388F21);