#664f13
a deep, vivid yellow · warm · closest name: sienna
RGB
102, 79, 19
HSL
43°, 69%, 24%
CMYK
0, 23, 81, 60
Luminance
0.0846
Every format
| HEX | #664f13 |
| RGB | rgb(102, 79, 19) |
| HSL | hsl(43, 69%, 24%) |
| CMYK | cmyk(0%, 23%, 81%, 60%) |
| LAB | lab(34.9 3.1 36.8) |
| LCH | lch(34.9 36.9 85.2) |
| OKLCH | oklch(0.440 0.081 86.6) |
Copy-ready code
/* CSS */
color: #664f13;
background-color: #664f13;
/* Tailwind (arbitrary) */
class="text-[#664f13] bg-[#664f13]"
/* SCSS */
$brand: #664f13;
/* SwiftUI */
Color(red: 0.400, green: 0.310, blue: 0.075)
/* Android */
Color.parseColor("#664f13")Accessibility — WCAG contrast
Aa
#664f13 on white: 7.80:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#664f13 on black: 2.69:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green31.0%
Blue7.5%
CMYK percentages
Cyan0.0%
Magenta22.5%
Yellow81.4%
Key (black)60.0%
Color previews
#664f13 text on a black background
contrast 2.69:1
Card sample
#664f13 text on a white background
contrast 7.80:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #664f13;
Background color
Panel with #664f13 background
background-color: #664f13;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #664f13;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 79, 19, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 79, 19, 0.45);
Border & gradient
Gradient panel
border: 3px solid #664f13; background: linear-gradient(135deg, #664f13, #466613);