#645a21
a dark, vivid yellow · cool · closest name: olive
RGB
100, 90, 33
HSL
51°, 50%, 26%
CMYK
0, 10, 67, 61
Luminance
0.1013
Every format
| HEX | #645a21 |
| RGB | rgb(100, 90, 33) |
| HSL | hsl(51, 50%, 26%) |
| CMYK | cmyk(0%, 10%, 67%, 61%) |
| LAB | lab(38.1 -3.6 33.4) |
| LCH | lch(38.1 33.6 96.2) |
| OKLCH | oklch(0.465 0.077 99.4) |
Copy-ready code
/* CSS */
color: #645a21;
background-color: #645a21;
/* Tailwind (arbitrary) */
class="text-[#645a21] bg-[#645a21]"
/* SCSS */
$brand: #645a21;
/* SwiftUI */
Color(red: 0.392, green: 0.353, blue: 0.129)
/* Android */
Color.parseColor("#645a21")Accessibility — WCAG contrast
Aa
#645a21 on white: 6.94:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#645a21 on black: 3.03:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green35.3%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta10.0%
Yellow67.0%
Key (black)60.8%
Color previews
#645a21 text on a black background
contrast 3.03:1
Card sample
#645a21 text on a white background
contrast 6.94:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #645a21;
Background color
Panel with #645a21 background
background-color: #645a21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #645a21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 90, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 90, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #645a21; background: linear-gradient(135deg, #645a21, #416421);