#40373c
a deep, muted gray · warm · closest name: darkslategray
RGB
64, 55, 60
HSL
327°, 8%, 23%
CMYK
0, 14, 6, 75
Luminance
0.0415
Every format
| HEX | #40373c |
| RGB | rgb(64, 55, 60) |
| HSL | hsl(327, 8%, 23%) |
| CMYK | cmyk(0%, 14%, 6%, 75%) |
| LAB | lab(24.2 5.0 -1.6) |
| LCH | lch(24.2 5.3 341.8) |
| OKLCH | oklch(0.348 0.015 343.4) |
Copy-ready code
/* CSS */
color: #40373c;
background-color: #40373c;
/* Tailwind (arbitrary) */
class="text-[#40373c] bg-[#40373c]"
/* SCSS */
$brand: #40373c;
/* SwiftUI */
Color(red: 0.251, green: 0.216, blue: 0.235)
/* Android */
Color.parseColor("#40373c")Accessibility — WCAG contrast
Aa
#40373c on white: 11.48:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#40373c on black: 1.83:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green21.6%
Blue23.5%
CMYK percentages
Cyan0.0%
Magenta14.1%
Yellow6.2%
Key (black)74.9%
Color previews
#40373c text on a black background
contrast 1.83:1
Card sample
#40373c text on a white background
contrast 11.48:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40373c;
Background color
Panel with #40373c background
background-color: #40373c;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40373c;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 55, 60, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 55, 60, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40373c; background: linear-gradient(135deg, #40373c, #403837);