#637821
a dark, vivid green · cool · closest name: olivedrab
RGB
99, 120, 33
HSL
75°, 57%, 30%
CMYK
18, 0, 73, 53
Luminance
0.1620
Every format
| HEX | #637821 |
| RGB | rgb(99, 120, 33) |
| HSL | hsl(75, 57%, 30%) |
| CMYK | cmyk(18%, 0%, 73%, 53%) |
| LAB | lab(47.2 -20.8 43.0) |
| LCH | lch(47.2 47.7 115.8) |
| OKLCH | oklch(0.538 0.114 122.1) |
Copy-ready code
/* CSS */
color: #637821;
background-color: #637821;
/* Tailwind (arbitrary) */
class="text-[#637821] bg-[#637821]"
/* SCSS */
$brand: #637821;
/* SwiftUI */
Color(red: 0.388, green: 0.471, blue: 0.129)
/* Android */
Color.parseColor("#637821")Accessibility — WCAG contrast
Aa
#637821 on white: 4.95:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#637821 on black: 4.24:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red38.8%
Green47.1%
Blue12.9%
CMYK percentages
Cyan17.5%
Magenta0.0%
Yellow72.5%
Key (black)52.9%
Color previews
#637821 text on a black background
contrast 4.24:1
Card sample
#637821 text on a white background
contrast 4.95:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #637821;
Background color
Panel with #637821 background
background-color: #637821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #637821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(99, 120, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(99, 120, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #637821; background: linear-gradient(135deg, #637821, #297821);