#637921
a dark, vivid green · cool · closest name: olivedrab
RGB
99, 121, 33
HSL
75°, 57%, 30%
CMYK
18, 0, 73, 53
Luminance
0.1644
Every format
| HEX | #637921 |
| RGB | rgb(99, 121, 33) |
| HSL | hsl(75, 57%, 30%) |
| CMYK | cmyk(18%, 0%, 73%, 53%) |
| LAB | lab(47.5 -21.3 43.3) |
| LCH | lch(47.5 48.2 116.2) |
| OKLCH | oklch(0.540 0.115 122.6) |
Copy-ready code
/* CSS */
color: #637921;
background-color: #637921;
/* Tailwind (arbitrary) */
class="text-[#637921] bg-[#637921]"
/* SCSS */
$brand: #637921;
/* SwiftUI */
Color(red: 0.388, green: 0.475, blue: 0.129)
/* Android */
Color.parseColor("#637921")Accessibility — WCAG contrast
Aa
#637921 on white: 4.90:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#637921 on black: 4.29:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red38.8%
Green47.5%
Blue12.9%
CMYK percentages
Cyan18.2%
Magenta0.0%
Yellow72.7%
Key (black)52.5%
Color previews
#637921 text on a black background
contrast 4.29:1
Card sample
#637921 text on a white background
contrast 4.90:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #637921;
Background color
Panel with #637921 background
background-color: #637921;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #637921;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(99, 121, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(99, 121, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #637921; background: linear-gradient(135deg, #637921, #287921);