#645b21
a dark, vivid yellow · cool · closest name: olive
RGB
100, 91, 33
HSL
52°, 50%, 26%
CMYK
0, 9, 67, 61
Luminance
0.1030
Every format
| HEX | #645b21 |
| RGB | rgb(100, 91, 33) |
| HSL | hsl(52, 50%, 26%) |
| CMYK | cmyk(0%, 9%, 67%, 61%) |
| LAB | lab(38.4 -4.2 33.8) |
| LCH | lch(38.4 34.0 97.1) |
| OKLCH | oklch(0.467 0.078 100.5) |
Copy-ready code
/* CSS */
color: #645b21;
background-color: #645b21;
/* Tailwind (arbitrary) */
class="text-[#645b21] bg-[#645b21]"
/* SCSS */
$brand: #645b21;
/* SwiftUI */
Color(red: 0.392, green: 0.357, blue: 0.129)
/* Android */
Color.parseColor("#645b21")Accessibility — WCAG contrast
Aa
#645b21 on white: 6.86:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#645b21 on black: 3.06:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green35.7%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta9.0%
Yellow67.0%
Key (black)60.8%
Color previews
#645b21 text on a black background
contrast 3.06:1
Card sample
#645b21 text on a white background
contrast 6.86:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #645b21;
Background color
Panel with #645b21 background
background-color: #645b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #645b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 91, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 91, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #645b21; background: linear-gradient(135deg, #645b21, #406421);