#556666
a dark, muted cyan · cool · closest name: darkslategray
RGB
85, 102, 102
HSL
180°, 9%, 37%
CMYK
17, 0, 0, 60
Luminance
0.1239
Every format
| HEX | #556666 |
| RGB | rgb(85, 102, 102) |
| HSL | hsl(180, 9%, 37%) |
| CMYK | cmyk(17%, 0%, 0%, 60%) |
| LAB | lab(41.8 -6.4 -2.1) |
| LCH | lch(41.8 6.8 198.6) |
| OKLCH | oklch(0.496 0.021 196.5) |
Copy-ready code
/* CSS */
color: #556666;
background-color: #556666;
/* Tailwind (arbitrary) */
class="text-[#556666] bg-[#556666]"
/* SCSS */
$brand: #556666;
/* SwiftUI */
Color(red: 0.333, green: 0.400, blue: 0.400)
/* Android */
Color.parseColor("#556666")Accessibility — WCAG contrast
Aa
#556666 on white: 6.04:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#556666 on black: 3.48:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red33.3%
Green40.0%
Blue40.0%
CMYK percentages
Cyan16.7%
Magenta0.0%
Yellow0.0%
Key (black)60.0%
Color previews
#556666 text on a black background
contrast 3.48:1
Card sample
#556666 text on a white background
contrast 6.04:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #556666;
Background color
Panel with #556666 background
background-color: #556666;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #556666;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(85, 102, 102, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(85, 102, 102, 0.45);
Border & gradient
Gradient panel
border: 3px solid #556666; background: linear-gradient(135deg, #556666, #555B66);