#646c01
a deep, electric yellow · cool · closest name: olive
RGB
100, 108, 1
HSL
65°, 98%, 21%
CMYK
7, 0, 99, 58
Luminance
0.1344
Every format
| HEX | #646c01 |
| RGB | rgb(100, 108, 1) |
| HSL | hsl(65, 98%, 21%) |
| CMYK | cmyk(7%, 0%, 99%, 58%) |
| LAB | lab(43.4 -15.2 49.1) |
| LCH | lch(43.4 51.4 107.2) |
| OKLCH | oklch(0.507 0.114 114.8) |
Copy-ready code
/* CSS */
color: #646c01;
background-color: #646c01;
/* Tailwind (arbitrary) */
class="text-[#646c01] bg-[#646c01]"
/* SCSS */
$brand: #646c01;
/* SwiftUI */
Color(red: 0.392, green: 0.424, blue: 0.004)
/* Android */
Color.parseColor("#646c01")Accessibility — WCAG contrast
Aa
#646c01 on white: 5.70:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#646c01 on black: 3.69:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green42.4%
Blue0.4%
CMYK percentages
Cyan7.4%
Magenta0.0%
Yellow99.1%
Key (black)57.6%
Color previews
#646c01 text on a black background
contrast 3.69:1
Card sample
#646c01 text on a white background
contrast 5.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #646c01;
Background color
Panel with #646c01 background
background-color: #646c01;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #646c01;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 108, 1, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 108, 1, 0.45);
Border & gradient
Gradient panel
border: 3px solid #646c01; background: linear-gradient(135deg, #646c01, #1D6C01);