#638b21
a dark, vivid green · cool · closest name: olivedrab
RGB
99, 139, 33
HSL
83°, 62%, 34%
CMYK
29, 0, 76, 46
Luminance
0.2123
Every format
| HEX | #638b21 |
| RGB | rgb(99, 139, 33) |
| HSL | hsl(83, 62%, 34%) |
| CMYK | cmyk(29%, 0%, 76%, 46%) |
| LAB | lab(53.2 -30.2 48.8) |
| LCH | lch(53.2 57.4 121.7) |
| OKLCH | oklch(0.586 0.139 128.4) |
Copy-ready code
/* CSS */
color: #638b21;
background-color: #638b21;
/* Tailwind (arbitrary) */
class="text-[#638b21] bg-[#638b21]"
/* SCSS */
$brand: #638b21;
/* SwiftUI */
Color(red: 0.388, green: 0.545, blue: 0.129)
/* Android */
Color.parseColor("#638b21")Accessibility — WCAG contrast
Aa
#638b21 on white: 4.00:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#638b21 on black: 5.25:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red38.8%
Green54.5%
Blue12.9%
CMYK percentages
Cyan28.8%
Magenta0.0%
Yellow76.3%
Key (black)45.5%
Color previews
#638b21 text on a black background
contrast 5.25:1
Card sample
#638b21 text on a white background
contrast 4.00:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #638b21;
Background color
Panel with #638b21 background
background-color: #638b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #638b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(99, 139, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(99, 139, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #638b21; background: linear-gradient(135deg, #638b21, #218B26);