#3f474f
a dark, muted blue · cool · closest name: darkslategray
RGB
63, 71, 79
HSL
210°, 11%, 28%
CMYK
20, 10, 0, 69
Luminance
0.0613
Every format
| HEX | #3f474f |
| RGB | rgb(63, 71, 79) |
| HSL | hsl(210, 11%, 28%) |
| CMYK | cmyk(20%, 10%, 0%, 69%) |
| LAB | lab(29.7 -1.3 -5.9) |
| LCH | lch(29.7 6.0 258.0) |
| OKLCH | oklch(0.394 0.017 248.3) |
Copy-ready code
/* CSS */
color: #3f474f;
background-color: #3f474f;
/* Tailwind (arbitrary) */
class="text-[#3f474f] bg-[#3f474f]"
/* SCSS */
$brand: #3f474f;
/* SwiftUI */
Color(red: 0.247, green: 0.278, blue: 0.310)
/* Android */
Color.parseColor("#3f474f")Accessibility — WCAG contrast
Aa
#3f474f on white: 9.44:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3f474f on black: 2.23:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green27.8%
Blue31.0%
CMYK percentages
Cyan20.3%
Magenta10.1%
Yellow0.0%
Key (black)69.0%
Color previews
#3f474f text on a black background
contrast 2.23:1
Card sample
#3f474f text on a white background
contrast 9.44:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f474f;
Background color
Panel with #3f474f background
background-color: #3f474f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f474f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 71, 79, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 71, 79, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f474f; background: linear-gradient(135deg, #3f474f, #423F4F);