#40390d
a deep, vivid yellow · cool · closest name: darkslategray
RGB
64, 57, 13
HSL
52°, 66%, 15%
CMYK
0, 11, 80, 75
Luminance
0.0405
Every format
| HEX | #40390d |
| RGB | rgb(64, 57, 13) |
| HSL | hsl(52, 66%, 15%) |
| CMYK | cmyk(0%, 11%, 80%, 75%) |
| LAB | lab(23.8 -3.0 27.2) |
| LCH | lch(23.8 27.4 96.2) |
| OKLCH | oklch(0.342 0.062 100.1) |
Copy-ready code
/* CSS */
color: #40390d;
background-color: #40390d;
/* Tailwind (arbitrary) */
class="text-[#40390d] bg-[#40390d]"
/* SCSS */
$brand: #40390d;
/* SwiftUI */
Color(red: 0.251, green: 0.224, blue: 0.051)
/* Android */
Color.parseColor("#40390d")Accessibility — WCAG contrast
Aa
#40390d on white: 11.61:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#40390d on black: 1.81:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green22.4%
Blue5.1%
CMYK percentages
Cyan0.0%
Magenta10.9%
Yellow79.7%
Key (black)74.9%
Color previews
#40390d text on a black background
contrast 1.81:1
Card sample
#40390d text on a white background
contrast 11.61:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40390d;
Background color
Panel with #40390d background
background-color: #40390d;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40390d;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 57, 13, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 57, 13, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40390d; background: linear-gradient(135deg, #40390d, #25400D);